250W Solar Mppt Cc-Cv Charging Lt8705 Automatic Lifting And Pressing Dc-Dc

250W Solar Mppt Cc-Cv Charging Lt8705 Automatic Lifting And Pressing Dc-Dc
  • SellerBETTERSHENGSUN SHENGSUN Store
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Product Description

Some parameters are explained:
1, module size: 103*65*24 2, the automatic lifting and pressing control scheme of LT8705 synchronous rectification 3, non isolated BUCK-BOOST 4, current mode control (the difference between current mode and voltage module shows that the former is superior to the latter). 5, the input voltage 6-80V 6, the input current adjustable range 0.5-15A, 7, input voltage adjustable range: 9-60V this function is suitable for use in MPPT solar panels. Please refer to detailed instructions in detail. 8, output voltage regulation: 1.3-80V 9, output current regulation: 0.5-15A (strongly recommended for use within 15A, relatively stable, and waveform not jitter). Module advantages: 1 with high input voltage above 60V, it can withstand 80V pulse voltage. 2, high output current: the output current can reach 15A for a long time and the maximum current is 20A. 3, the input and output current is adjustable: the input current can be adjusted to fit the constant current source. The adjustable output current is especially suitable for large current charging of the battery, as well as the large current charging of the iron lithium battery, which basically covers all the batteries. 4, it has the function of input and output voltage regulation: the input voltage adjustment is suitable for tracking the maximum power point voltage of the solar panel, and the maximum power point tracking is realized to some extent. Operation instructions: Potentiometer adjustment: (input and output current regulation is affected by the chip control principle, and the adjustment process is not linear). The output of the 2 potentiometers is adjusted by clockwise adjustment. 1, the input voltage regulation potentiometer: suppose that the minimum input voltage is set to 20V, the adjustment method is the power supply to the input 20V, and the potentiometer is adjusted against clockwise until the module stops output. At this time 20V undervoltage shutdown value. If the input is a constant current source and the load is large, the module will reduce the input current and maintain the input voltage of 20V. 3, the output voltage regulator potentiometer: clockwise adjust the output voltage increases, counterclockwise smaller. 4, the output current regulating potentiometer: the adjustment method is to connect the multimeter and the large load in the positive and negative pole of the output end (or short circuit directly with the multimeter, not recommend this method, the accuracy will be offset) to adjust the potentiometer against clockwise, until the current value of the multimeter is reduced to the required value. (regulation premise is that the input power is not limited or the limit is greater than the output power of the adjustment, otherwise because the input power is limited to the correct output value), the adjustment method of the current meter of the module itself is used to ensure that the output voltage is above 5V, the output end is larger than the required current value, and the counter clockwise adjustment is made. The potentiometer until the display value is the required value. (the reason is that the output current detection function needs to ensure that the output voltage is above 3V, and the output voltage after short circuit output is less than 3V, and the output current value can not be displayed). If the module is required, please inform the use of the environment in detail, evaluate the effect of the use, and give advice to the point, and the actual test of the work before the delivery. Application description 1, the maximum power of the solar power charging: the input current limit function is very suitable for the solar battery board constant current source charging, purchasing two 200W battery board and the module charging is a good choice, the output directly connected to the battery charging, no need to worry about the back irrigation, as long as the output and the positive and negative reaction of the battery can be. 2, vehicle batteries charge high current and high efficiency, and the two level battery charging and power supply system. 3, large capacity lithium battery, lithium iron battery, high current constant current charging. 4, high power LED constant current drive 5, the battery voltage regulator power supply system, telecom base station backup regulator. 6, it can be used as an adjustable voltage regulator with low request. (response speed, accuracy, noise is less than that of linear regulator, but it has the characteristics of high efficiency and high power). 7, other adjustable constant current applications Remarks: 1, the output voltage is different from the MOS tube and the capacitance. The filtering effect, the efficiency and the transient capability are different. It is suggested that the input and output are lower than the 40V, and the input and output can be connected with other parameters. 2, the conduction resistance of MOS is only 3 milliohms when measured at Vgs=6V, which reduces I2R loss to a certain extent. 3, the module input current output current regulation range is 0.5-20A. (in order to reduce the loss on the sampling resistor, the minimum adjusting current is 1A. 4, the input and output ratio is 2 times less than 10A long time, and there is no pressure to work at 15A. The good life span of heat dissipation is long. Other The current mode of the DC-DC controller is different from the voltage mode. Voltage mode: there is only one voltage feedback loop. After changing the voltage signal, the PWM is changed. The dynamic response is poor, and a larger filter capacitor is needed. The system has no built-in current limiting protection function, some may be added, and does not participate in system feedback. Current mode: fast dynamic response, good stability, real inductance current soft start, accurate fast current feedback, easy to realize current sharing, easy feedback design and relatively low demand for capacitance; this mode uses inductance current signal as feedback loop, plus voltage feedback as outer loop control of external loop. MPPT function: the module has an input voltage limit function, that is, after setting the maximum power point voltage of the solar energy, as long as the voltage is lower than that, the module will reduce the output current, reduce the output power, and ensure the input voltage is stable at the set value. For example, the maximum power point voltage of the solar cell is 34V. First, the input voltage is adjusted to 34V, and the input voltage potentiometer is adjusted counterclockwise until the module has no output. At this point the most input voltage of the module works is 34V. The energy utilization of this module is much higher than that of the solar controller without MPPT function, at least under the maximum light condition. It is difficult to adjust the maximum power point without suitable conditions. It is recommended to inform the maximum power and voltage current parameters of the battery panel before I adjust it before shipment. The principle of maximum power point is the maximization of the product of the two header values of the module, based on which the input current is regulated to regulate the input voltage. The three working modes of modules can be chosen according to the actual situation. 1: forced continuous mode, the inductance current is continuous, the advantage is that the output filter condition is the same, the output ripple is small, and the output current regulation is relatively stable. However, under different output conditions, the inductor current is allowed to reverse, that is, the input will absorb the current to the output. If the output voltage of the module is lower than the voltage of the rechargeable pool, the current will be back to the output leading to high output voltage or even damage to the module. 2: intermittent mode, the interruption of inductance current, the disadvantage is that the ripple is relatively large, and the output current regulation range may have noise. However, the inductor current will not be reversed. The output voltage of the module can be lower than the battery voltage and will not be poured back to the output, which is relatively safer for battery charging. (measured the 58V voltage directly to the output of the module and the module output is 14V). 3: jumping mode: the inductance current is intermittent, and the efficiency is high in light load or empty load. Typically, the no-load current is only a few milli ampere, and the other modes have dozens of milleampere current. The disadvantage is that it is difficult to guarantee the stability of the 4 regulating loops. The above is the difference between the three modes of the module. Now, only these differences can be found and will always improve.

Some parameters are explained:
1, module size: 103*65*24 2, the automatic lifting and pressing control scheme of LT8705 synchronous rectification 3, non isolated BUCK-BOOST 4, current mode control (the difference between current mode and voltage module shows that the former is superior to the latter). 5, the input voltage 6-80V 6, the input current adjustable range 0.5-15A, 7, input voltage adjustable range: 9-60V this function is suitable for use in MPPT solar panels. Please refer to detailed instructions in detail. 8, output voltage regulation: 1.3-80V 9, output current regulation: 0.5-15A (strongly recommended for use within 15A, relatively stable, and waveform not jitter). Module advantages: 1 with high input voltage above 60V, it can withstand 80V pulse voltage. 2, high output current: the output current can reach 15A for a long time and the maximum current is 20A. 3, the input and output current is adjustable: the input current can be adjusted to fit the constant current source. The adjustable output current is especially suitable for large current charging of the battery, as well as the large current charging of the iron lithium battery, which basically covers all the batteries. 4, it has the function of input and output voltage regulation: the input voltage adjustment is suitable for tracking the maximum power point voltage of the solar panel, and the maximum power point tracking is realized to some extent. Operation instructions: Potentiometer adjustment: (input and output current regulation is affected by the chip control principle, and the adjustment process is not linear). The output of the 2 potentiometers is adjusted by clockwise adjustment. 1, the input voltage regulation potentiometer: suppose that the minimum input voltage is set to 20V, the adjustment method is the power supply to the input 20V, and the potentiometer is adjusted against clockwise until the module stops output. At this time 20V undervoltage shutdown value. If the input is a constant current source and the load is large, the module will reduce the input current and maintain the input voltage of 20V. 3, the output voltage regulator potentiometer: clockwise adjust the output voltage increases, counterclockwise smaller. 4, the output current regulating potentiometer: the adjustment method is to connect the multimeter and the large load in the positive and negative pole of the output end (or short circuit directly with the multimeter, not recommend this method, the accuracy will be offset) to adjust the potentiometer against clockwise, until the current value of the multimeter is reduced to the required value. (regulation premise is that the input power is not limited or the limit is greater than the output power of the adjustment, otherwise because the input power is limited to the correct output value), the adjustment method of the current meter of the module itself is used to ensure that the output voltage is above 5V, the output end is larger than the required current value, and the counter clockwise adjustment is made. The potentiometer until the display value is the required value. (the reason is that the output current detection function needs to ensure that the output voltage is above 3V, and the output voltage after short circuit output is less than 3V, and the output current value can not be displayed). If the module is required, please inform the use of the environment in detail, evaluate the effect of the use, and give advice to the point, and the actual test of the work before the delivery. Application description 1, the maximum power of the solar power charging: the input current limit function is very suitable for the solar battery board constant current source charging, purchasing two 200W battery board and the module charging is a good choice, the output directly connected to the battery charging, no need to worry about the back irrigation, as long as the output and the positive and negative reaction of the battery can be. 2, vehicle batteries charge high current and high efficiency, and the two level battery charging and power supply system. 3, large capacity lithium battery, lithium iron battery, high current constant current charging. 4, high power LED constant current drive 5, the battery voltage regulator power supply system, telecom base station backup regulator. 6, it can be used as an adjustable voltage regulator with low request. (response speed, accuracy, noise is less than that of linear regulator, but it has the characteristics of high efficiency and high power). 7, other adjustable constant current applications Remarks: 1, the output voltage is different from the MOS tube and the capacitance. The filtering effect, the efficiency and the transient capability are different. It is suggested that the input and output are lower than the 40V, and the input and output can be connected with other parameters. 2, the conduction resistance of MOS is only 3 milliohms when measured at Vgs=6V, which reduces I2R loss to a certain extent. 3, the module input current output current regulation range is 0.5-20A. (in order to reduce the loss on the sampling resistor, the minimum adjusting current is 1A. 4, the input and output ratio is 2 times less than 10A long time, and there is no pressure to work at 15A. The good life span of heat dissipation is long. Other The current mode of the DC-DC controller is different from the voltage mode. Voltage mode: there is only one voltage feedback loop. After changing the voltage signal, the PWM is changed. The dynamic response is poor, and a larger filter capacitor is needed. The system has no built-in current limiting protection function, some may be added, and does not participate in system feedback. Current mode: fast dynamic response, good stability, real inductance current soft start, accurate fast current feedback, easy to realize current sharing, easy feedback design and relatively low demand for capacitance; this mode uses inductance current signal as feedback loop, plus voltage feedback as outer loop control of external loop. MPPT function: the module has an input voltage limit function, that is, after setting the maximum power point voltage of the solar energy, as long as the voltage is lower than that, the module will reduce the output current, reduce the output power, and ensure the input voltage is stable at the set value. For example, the maximum power point voltage of the solar cell is 34V. First, the input voltage is adjusted to 34V, and the input voltage potentiometer is adjusted counterclockwise until the module has no output. At this point the most input voltage of the module works is 34V. The energy utilization of this module is much higher than that of the solar controller without MPPT function, at least under the maximum light condition. It is difficult to adjust the maximum power point without suitable conditions. It is recommended to inform the maximum power and voltage current parameters of the battery panel before I adjust it before shipment. The principle of maximum power point is the maximization of the product of the two header values of the module, based on which the input current is regulated to regulate the input voltage. The three working modes of modules can be chosen according to the actual situation. 1: forced continuous mode, the inductance current is continuous, the advantage is that the output filter condition is the same, the output ripple is small, and the output current regulation is relatively stable. However, under different output conditions, the inductor current is allowed to reverse, that is, the input will absorb the current to the output. If the output voltage of the module is lower than the voltage of the rechargeable pool, the current will be back to the output leading to high output voltage or even damage to the module. 2: intermittent mode, the interruption of inductance current, the disadvantage is that the ripple is relatively large, and the output current regulation range may have noise. However, the inductor current will not be reversed. The output voltage of the module can be lower than the battery voltage and will not be poured back to the output, which is relatively safer for battery charging. (measured the 58V voltage directly to the output of the module and the module output is 14V). 3: jumping mode: the inductance current is intermittent, and the efficiency is high in light load or empty load. Typically, the no-load current is only a few milli ampere, and the other modes have dozens of milleampere current. The disadvantage is that it is difficult to guarantee the stability of the 4 regulating loops. The above is the difference between the three modes of the module. Now, only these differences can be found and will always improve.

Some parameters are explained:
1, module size: 103*65*24 2, the automatic lifting and pressing control scheme of LT8705 synchronous rectification 3, non isolated BUCK-BOOST 4, current mode control (the difference between current mode and voltage module shows that the former is superior to the latter). 5, the input voltage 6-80V 6, the input current adjustable range 0.5-15A, 7, input voltage adjustable range: 9-60V this function is suitable for use in MPPT solar panels. Please refer to detailed instructions in detail. 8, output voltage regulation: 1.3-80V 9, output current regulation: 0.5-15A (strongly recommended for use within 15A, relatively stable, and waveform not jitter). Module advantages: 1 with high input voltage above 60V, it can withstand 80V pulse voltage. 2, high output current: the output current can reach 15A for a long time and the maximum current is 20A. 3, the input and output current is adjustable: the input current can be adjusted to fit the constant current source. The adjustable output current is especially suitable for large current charging of the battery, as well as the large current charging of the iron lithium battery, which basically covers all the batteries. 4, it has the function of input and output voltage regulation: the input voltage adjustment is suitable for tracking the maximum power point voltage of the solar panel, and the maximum power point tracking is realized to some extent. Operation instructions: Potentiometer adjustment: (input and output current regulation is affected by the chip control principle, and the adjustment process is not linear). The output of the 2 potentiometers is adjusted by clockwise adjustment. 1, the input voltage regulation potentiometer: suppose that the minimum input voltage is set to 20V, the adjustment method is the power supply to the input 20V, and the potentiometer is adjusted against clockwise until the module stops output. At this time 20V undervoltage shutdown value. If the input is a constant current source and the load is large, the module will reduce the input current and maintain the input voltage of 20V. 3, the output voltage regulator potentiometer: clockwise adjust the output voltage increases, counterclockwise smaller. 4, the output current regulating potentiometer: the adjustment method is to connect the multimeter and the large load in the positive and negative pole of the output end (or short circuit directly with the multimeter, not recommend this method, the accuracy will be offset) to adjust the potentiometer against clockwise, until the current value of the multimeter is reduced to the required value. (regulation premise is that the input power is not limited or the limit is greater than the output power of the adjustment, otherwise because the input power is limited to the correct output value), the adjustment method of the current meter of the module itself is used to ensure that the output voltage is above 5V, the output end is larger than the required current value, and the counter clockwise adjustment is made. The potentiometer until the display value is the required value. (the reason is that the output current detection function needs to ensure that the output voltage is above 3V, and the output voltage after short circuit output is less than 3V, and the output current value can not be displayed). If the module is required, please inform the use of the environment in detail, evaluate the effect of the use, and give advice to the point, and the actual test of the work before the delivery. Application description 1, the maximum power of the solar power charging: the input current limit function is very suitable for the solar battery board constant current source charging, purchasing two 200W battery board and the module charging is a good choice, the output directly connected to the battery charging, no need to worry about the back irrigation, as long as the output and the positive and negative reaction of the battery can be. 2, vehicle batteries charge high current and high efficiency, and the two level battery charging and power supply system. 3, large capacity lithium battery, lithium iron battery, high current constant current charging. 4, high power LED constant current drive 5, the battery voltage regulator power supply system, telecom base station backup regulator. 6, it can be used as an adjustable voltage regulator with low request. (response speed, accuracy, noise is less than that of linear regulator, but it has the characteristics of high efficiency and high power). 7, other adjustable constant current applications Remarks: 1, the output voltage is different from the MOS tube and the capacitance. The filtering effect, the efficiency and the transient capability are different. It is suggested that the input and output are lower than the 40V, and the input and output can be connected with other parameters. 2, the conduction resistance of MOS is only 3 milliohms when measured at Vgs=6V, which reduces I2R loss to a certain extent. 3, the module input current output current regulation range is 0.5-20A. (in order to reduce the loss on the sampling resistor, the minimum adjusting current is 1A. 4, the input and output ratio is 2 times less than 10A long time, and there is no pressure to work at 15A. The good life span of heat dissipation is long. Other The current mode of the DC-DC controller is different from the voltage mode. Voltage mode: there is only one voltage feedback loop. After changing the voltage signal, the PWM is changed. The dynamic response is poor, and a larger filter capacitor is needed. The system has no built-in current limiting protection function, some may be added, and does not participate in system feedback. Current mode: fast dynamic response, good stability, real inductance current soft start, accurate fast current feedback, easy to realize current sharing, easy feedback design and relatively low demand for capacitance; this mode uses inductance current signal as feedback loop, plus voltage feedback as outer loop control of external loop. MPPT function: the module has an input voltage limit function, that is, after setting the maximum power point voltage of the solar energy, as long as the voltage is lower than that, the module will reduce the output current, reduce the output power, and ensure the input voltage is stable at the set value. For example, the maximum power point voltage of the solar cell is 34V. First, the input voltage is adjusted to 34V, and the input voltage potentiometer is adjusted counterclockwise until the module has no output. At this point the most input voltage of the module works is 34V. The energy utilization of this module is much higher than that of the solar controller without MPPT function, at least under the maximum light condition. It is difficult to adjust the maximum power point without suitable conditions. It is recommended to inform the maximum power and voltage current parameters of the battery panel before I adjust it before shipment. The principle of maximum power point is the maximization of the product of the two header values of the module, based on which the input current is regulated to regulate the input voltage. The three working modes of modules can be chosen according to the actual situation. 1: forced continuous mode, the inductance current is continuous, the advantage is that the output filter condition is the same, the output ripple is small, and the output current regulation is relatively stable. However, under different output conditions, the inductor current is allowed to reverse, that is, the input will absorb the current to the output. If the output voltage of the module is lower than the voltage of the rechargeable pool, the current will be back to the output leading to high output voltage or even damage to the module. 2: intermittent mode, the interruption of inductance current, the disadvantage is that the ripple is relatively large, and the output current regulation range may have noise. However, the inductor current will not be reversed. The output voltage of the module can be lower than the battery voltage and will not be poured back to the output, which is relatively safer for battery charging. (measured the 58V voltage directly to the output of the module and the module output is 14V). 3: jumping mode: the inductance current is intermittent, and the efficiency is high in light load or empty load. Typically, the no-load current is only a few milli ampere, and the other modes have dozens of milleampere current. The disadvantage is that it is difficult to guarantee the stability of the 4 regulating loops. The above is the difference between the three modes of the module. Now, only these differences can be found and will always improve. Remarks: 1, the output voltage is different from the MOS tube and the capacitance. The filtering effect, the efficiency and the transient capability are different. It is suggested that the input and output are lower than the 40V, and the input and output can be connected with other parameters. 2, the conduction resistance of MOS is only 3 milliohms when measured at Vgs=6V, which reduces I2R loss to a certain extent. 3, the module input current output current regulation range is 0.5-20A. (in order to reduce the loss on the sampling resistor, the minimum adjusting current is 1A. 4, the input and output ratio is 2 times less than 10A long time, and there is no pressure to work at 15A. The good life span of heat dissipation is long. Other The current mode of the DC-DC controller is different from the voltage mode. Voltage mode: there is only one voltage feedback loop. After changing the voltage signal, the PWM is changed. The dynamic response is poor, and a larger filter capacitor is needed. The system has no built-in current limiting protection function, some may be added, and does not participate in system feedback. Current mode: fast dynamic response, good stability, real inductance current soft start, accurate fast current feedback, easy to realize current sharing, easy feedback design and relatively low demand for capacitance; this mode uses inductance current signal as feedback loop, plus voltage feedback as outer loop control of external loop. MPPT function: the module has an input voltage limit function, that is, after setting the maximum power point voltage of the solar energy, as long as the voltage is lower than that, the module will reduce the output current, reduce the output power, and ensure the input voltage is stable at the set value. For example, the maximum power point voltage of the solar cell is 34V. First, the input voltage is adjusted to 34V, and the input voltage potentiometer is adjusted counterclockwise until the module has no output. At this point the most input voltage of the module works is 34V. The energy utilization of this module is much higher than that of the solar controller without MPPT function, at least under the maximum light condition. It is difficult to adjust the maximum power point without suitable conditions. It is recommended to inform the maximum power and voltage current parameters of the battery panel before I adjust it before shipment. The principle of maximum power point is the maximization of the product of the two header values of the module, based on which the input current is regulated to regulate the input voltage. The three working modes of modules can be chosen according to the actual situation. 1: forced continuous mode, the inductance current is continuous, the advantage is that the output filter condition is the same, the output ripple is small, and the output current regulation is relatively stable. However, under different output conditions, the inductor current is allowed to reverse, that is, the input will absorb the current to the output. If the output voltage of the module is lower than the voltage of the rechargeable pool, the current will be back to the output leading to high output voltage or even damage to the module. 2: intermittent mode, the interruption of inductance current, the disadvantage is that the ripple is relatively large, and the output current regulation range may have noise. However, the inductor current will not be reversed. The output voltage of the module can be lower than the battery voltage and will not be poured back to the output, which is relatively safer for battery charging. (measured the 58V voltage directly to the output of the module and the module output is 14V). 3: jumping mode: the inductance current is intermittent, and the efficiency is high in light load or empty load. Typically, the no-load current is only a few milli ampere, and the other modes have dozens of milleampere current. The disadvantage is that it is difficult to guarantee the stability of the 4 regulating loops. The above is the difference between the three modes of the module. Now, only these differences can be found and will always improve.

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