Description

DIY Kit LM317 Adjustable Regulated Voltage Module AC 110V 220V to DC 1.25V-12.5V Step Down Power Supply Module Buck Converter Electronic Kits

Introduction:

It is an AC-DC 110V to 1.25V-12V LM317 Adjustable Step Down Power Supply Buck Voltage Converter LED Display DIY Kit. It can output stable voltage. Users can change output by operating a potentiometer. It also can be used as a signal generator or logic circuit or buzzer alarm circuit.

Note:

1>. It is a DIY kit so that needs finish install by the user.

2>. Its max output power is 2.5W.

3>. It can not be used as a charger.

- Since the output current is not large, it can only supply power to the small current circuit.

- If the power supply load is too large, the voltage will drop.

- Can't charge the phone

Detection Circuit Conduction State and Low Frequency Signal

Detection Circuit Conduction Status:

Connect the wire to the positive terminal of the power supply and the signal input terminal, when the wire is connected, the buzzer will sound

Test Low-frequency Signal:

Input the signal from the signal input terminal, if there is a signal, the buzzer will sound

Long Handle Voltage Adjustment Knob:

1.25-12V adjustable regulated output, output current 200mA, suitable for powering small DIY circuits

Installation Tips:

1>. The user needs to prepare the soldering tool first.

2>. Please be patient until the installation is complete.

3>. The package is a DIY kit. It need finish installing by the user.

4>. The soldering iron can't touch the components for a long time(1.0 seconds), otherwise, it will damage the components.

5>. Pay attention to the positive and negative of the components.

6>. Strictly prohibit short circuits.

7>. Install complex components preferentially.

8>. Make sure all components are in the right direction and right place.

9>. Please wear anti-static gloves or anti-static wristbands when installing electronic components.

10>. It is strongly recommended to read the installation manual before starting installation!!!

Function

1>. Voltage converter: Input AC 110V and adjustable output DC 1.25V-12V 200mA. It can provide work power for low-power electrical appliances.

2>. Signal generator: It can output one PWM signal for laboratory circuit tests. Users can adjust output frequency by blue/white potentiometer.

3>. Logic test circuit: It can set input high or low TTL signal and indicator by LED.

4>. Buzzer alarm circuit: Circuit test and alarm by the buzzer.

Parameter

Item name: AC-DC 110V to 12V LM317 Buck Voltage Converter DIY Kit

Input voltage:AC 110V

Output voltage:DC 1.25V-12V

Output current:200mA

Output power:2.5W

Power wire length:100cm

Output wire length:20cm

Work Temperature:-40℃~85℃

Work Humidity:0%~95%RH

Size(Installed):112*68*40mm