Dongker 800W 30A Adjustable Power Supply High Performance Down Module

1: With this module, high voltage batteries can be input for charging low voltage batteries

2: Various occasions that require a high voltage drop to low voltage and high current.

3: Solar buck charging

4: Build an adjustable step-down DC module yourself, which can replace the original adjustable module with an external adjustable module (voltage 100K, current 1K) and is easy to use. The adjustable external connector must be wrapped with high-quality multi-turn wires. Poor quality leads to damage to the module. The outer wires should not exceed 15 cm

1. The input and output cannot be reversed, and the positive and negative poles of the output cannot be reversed or short-circuited.

2. The maximum input peak voltage must not exceed 78V. If it is too high, the module may be damaged. Please use it within the voltage range.

3. The output voltage and output current are infinitely adjustable at constant voltage and constant current. They can be adjusted counterclockwise to increase and clockwise to decrease. The minimum current is 1A.

4. If the input voltage of this module is less than 30V and the output is less than 12V, the output can be short-circuited without damaging the module. You can use the ammeter to short circuit and output the adjustable output current (but try to short circuit at low voltage).

5. When you adjust the output current, you can adjust the current and adjust it while using the mV transmission of the multimeter to measure the reference point voltage of the output current. Every 2 mV corresponds to an output current of 1 A. Adjust the reference point voltage according to the required current.

6. The two diodes D9 and D10 can be converted into two LED light emitting diodes. After modification, they can be used as constant voltage and constant current working status indicators (can only be changed to the original position of the board and cannot be pulled out with wires).

7. If you adjust the voltage and current with an external analog signal, the external voltage signal is 0-5V, and pay attention to the positive and negative poles when connecting. Note: When the power supply of the external signal is connected, a separate power supply is required, and the grounding cable must not be shared with this module, otherwise the module may be damaged.

8. If external analog signal adjustment is required, two resistors must be removed: R38 (the second resistor behind the voltage signal port) must be removed if the voltage needs to be adjusted, and R46 (the second resistor behind the current signal). connector) must be removed if the power needs to be adjusted. ), at this time, the two adjustable voltages and currents are changed to the adjustable correction voltages and currents. If the adjustable correction is not needed, the adjustable can be replaced with the corresponding fixed resistor.

9. This module is not suitable for loads with motors and large starting currents.

10. The maximum output power of this module is 800W. If the output voltage is below 26V, the maximum output current can reach 30A. If the output voltage is higher than 26V, the output current will be reduced accordingly. This data is for reference only and actual usage environments and conditions apply.

11. The anti-reverse connection of the Mos tube and the current detection of this module are located on the negative pole (ground cable). If the output requires constant current and current limitation, the negative poles of input and output must not be shared or short-circuited and must be disconnected.

12. When using, please increase the heat dissipation of the module depending on the environment and load.

13. Input and Output Voltage Difference Description:

A: The input is 70V and the maximum output is 58V. B: Input 60 V, maximum output 49 V.

c: Input 50V, Maximum Output 40V D: Input 40 V, maximum output 32 V.

E: Input 30V, Maximum Output 24V Q: Input 20 V, maximum output 16 V.

Note: For those who are not familiar with the technology, please do not make any changes to this module to avoid unnecessary losses and problems. Because once the module is replaced, the store is not responsible for the.

RENINDER

1. If the input or output voltage exceeds 36V, handle it carefully and pay attention to the risk of electric shock.

2. If the temperature of this module rises above 65 degrees, please increase heat dissipation in time.

3. Please pay attention to moisture and dust when using.