Product Describe: Adjustable regulated power supply assembled DIY kit, 110V input voltage, 1.25V-12V adjustable voltage output. Suitable for electronic DIY electronics enthusiasts to learn, welding practice. And can be used for electronic DIY small circuit power supply. Product function: one adjustable signal generator output, convenient to provide pulse signals to the experimental circuit, logic pen to test the logic level, and a buzzer to test whether the circuit is powered And low frequency signals. With 1-way buzzer: can test the wire on and off (connect the wire to the power supply and signal input. wire through - buzzer sound); can also test low-frequency signals, (the signal from the signal input terminal input, the signal from the signal input terminal, the signal from the signal input terminal, the signal from the signal input terminal, the signal from the signal input terminal, the signal from the signal input terminal. If there is a signal, the buzzer sounds). Product parameters:Power in voltage 110V Transformer power, Shell size: 11.2x6.9x4cm, PCB size: 7.2x6.2cm, Weight: 270g. ETAxopowo package the product with 14.5x11x5cm Sturdy cardboard box. include paper instruction and website tutorial. Application:widely used in schools to help students learn basic mechanical and electronic skills.Through the analysis of the circuit, understand the working principle of the circuit, learn to train electronic skills, welding training.
Output voltage:1.25-12V
output current:200mA
input voltage:110V
Transformer power:2.5W
power cable length: 1 meter
output cable length:20cm
Product size:11.2x6.9x4cm
Package size:14.5x11x5cm
shell material:plastic
PCB size:7.2x6.2cm
weight:270g
Fault detection:
1. Detect whether all components are installed correctly:
2.Detect whether the solder joints are welded well, whether there is false welding leakage welding:
3.No power in the circuit, detect whether the transformer is connected wrongly (wrongly connected transformer will burn out),
use the AC gear of the multimeter to measure whether the output voltage of the blue line of the transformer has about 12V.
If the voltage is too low, you should check the circuit to see if there is a short circuit on the circuit of the solder joints, there is no installation of the wrong components:
4.Voltage is not adjustable: check the voltmeter behind the location of the welding pins at the two solder joints there is no short-circuit (if short-circuit to remove him)
5.Voltage regulation range is very small: check R1 resistor is not installed incorrectly, the correct resistance should be 240 ohms.
6.connected to the circuit voltage drops immediately: this power supply is mainly for teaching and training purposes, the transformer power is only 2.5W, the maximum output current of only 200mA, is not suitable for high-current circuit power supply.
If the power supply for high-current circuits will appear voltage drop phenomenon.
Output voltage:1.25-12V
output current:200mA
input voltage:110V
Transformer power:2.5W
power cable length: 1 meter
output cable length:20cm
Product size:11.2x6.9x4cm
Package size:14.5x11x5cm
shell material:plastic
PCB size:7.2x6.2cm
weight:270g
Fault detection:
1. Detect whether all components are installed correctly:
2.Detect whether the solder joints are welded well, whether there is false welding leakage welding:
3.No power in the circuit, detect whether the transformer is connected wrongly (wrongly connected transformer will burn out),
use the AC gear of the multimeter to measure whether the output voltage of the blue line of the transformer has about 12V.
If the voltage is too low, you should check the circuit to see if there is a short circuit on the circuit of the solder joints, there is no installation of the wrong components:
4.Voltage is not adjustable: check the voltmeter behind the location of the welding pins at the two solder joints there is no short-circuit (if short-circuit to remove him)
5.Voltage regulation range is very small: check R1 resistor is not installed incorrectly, the correct resistance should be 240 ohms.
6.connected to the circuit voltage drops immediately: this power supply is mainly for teaching and training purposes, the transformer power is only 2.5W, the maximum output current of only 200mA, is not suitable for high-current circuit power supply.
If the power supply for high-current circuits will appear voltage drop phenomenon.