Product Introduction
This power supply is a high-efficiency voltage-stabilized power supply module. When the input voltage is lower than, higher than, or equal to the output voltage, the output voltage can remain stable. For example, if the output is set to 12V, then when the input voltage changes between 5 and 32V, the output voltage remains stable at 12V. This module has perfect protection functions and can be used for solar charging.
[Introduction to Synchronous Rectification Technology]
Synchronous rectification is a new technology that uses a dedicated power MOSFET with extremely low on-resistance to replace the rectifier diode to reduce rectification loss. It can greatly improve the efficiency of the DC/DC converter and there is no dead zone voltage caused by the Schottky barrier voltage. The power MOSFET is a voltage-controlled device, and its volt-ampere characteristics are linear when it is turned on. When using a power MOSFET as a rectifier, the gate voltage must be synchronized with the phase of the rectified voltage to complete the rectification function, so it is called synchronous rectification. Synchronous rectification technology greatly reduces the rectification loss at the output end of the switching power supply, thereby improving the conversion efficiency and reducing the heat generation of the power supply itself.
Product Parameters
1. Input voltage: DC5-32V, recommended voltage is above 10V
2. Output voltage: DC1V-30V continuously adjustable;
3. Output current: 10A (MAX), long-term within 7A;
4. Output power: long-term 80W, peak 130W, please strengthen heat dissipation if it exceeds 80W;
5. Output ripple: 50mV (12V to 12V, 5A measured);
6. Input reverse connection protection: No, if necessary, please connect a Schottky diode in series at the input end;
7. Output backflow protection: No, if used for battery charging or the load is a self-contained load, please connect a Schottky diode in series at the output end;
8. Size: 77.6*46.5*15mm
9. Short circuit protection: Yes;
10. Weight is about 45 grams;
Product Features
The circuit board adopts 1.6 thickened gold plating process;
The input adopts replaceable fuse to protect the power supply and equipment;
The whole electrolytic plate adopts imported original patch, low resistance, high frequency capacitor, which reduces the ripple to the freezing point;
The IC adopts imported original;
Constant voltage, constant current, undervoltage protection (MPPT is more suitable for solar charging)
The output error indicator lights up when the output voltage drift is too serious, short circuit and other faults;
The heat dissipation effect of the oxidized heat sink is better than that of the natural aluminum sheet;
The inductor adopts iron silicon aluminum, which generates less heat;
Product debugging method
[Debugging method] 1. Battery undervoltage protection adjustment method: (Take 12V lead-acid battery to set 10V undervoltage protection and shut down output as an example) The input is connected to the regulated power supply and adjusted to 10V, and the undervoltage protection potentiometer is adjusted (clockwise to increase, counterclockwise to decrease) until the fault indicator light (red light) is on, that is, the setting is successful; in this way, when the battery is discharged to 10V, the power supply will be automatically cut off to protect the battery from damage. Note: If it is not powered by a battery, no setting is required; 2. Output voltage adjustment method: input is connected to the power supply (voltage is higher than the undervoltage protection value), the red light is off and the blue light is on, the output is connected to the multimeter, and the output voltage potentiometer is adjusted (clockwise to increase, counterclockwise to decrease) until the required voltage is reached; Note: Normally, the red light is off and the blue light is on. Otherwise, there is a fault, input undervoltage protection, output overcurrent protection, output short circuit protection, please troubleshoot the fault and power on again. 3. Output current adjustment method: (charge 12V lead-acid battery with 12V input, charging current 5A as an example) Connect the input to a 12V power supply, and connect the output to an ammeter in parallel (the red meter pen is connected to the positive output, the black meter pen is connected to the negative output, and the output is directly short-circuited. It is recommended to use an ammeter of more than 15A to prevent the fuse from burning). Adjust the constant current potentiometer (clockwise to increase, counterclockwise to decrease) until the ammeter displays the required value of 5A. Remove the ammeter and connect the battery to charge normally. Note: If used for constant voltage equipment, only the maximum output current needs to be set. |
Product Photos
Product Notes
▲Please read the following instructions carefully, otherwise, damage caused by improper use will not be replaced.
This module is an automatic step-up and step-down power supply. When the input voltage is lower than, higher than, or equal to the output voltage, the output voltage can remain stable. For example, when the output is set to 12V and the input voltage changes between 5 and 32V, the output voltage remains constant at 12V; it has constant current, constant voltage, undervoltage protection, as well as output indication and fault indication functions, and the output has overcurrent, overvoltage, and short circuit protection; all components can reach industrial-grade applications; it can be perfectly used in various occasions, such as charging, high-power LED driving, equipment power supply, vehicle power supply, etc.
Company Information
