Technical Application of DC Stabilized Power Supply
All electronic equipment is inseparable from electricity, and power supply is a device that converts commercial power into the power required by a circuit, including AC power supply and DC regulated power supply. A DC stabilized power supply is a device that converts 220 volts to 50 Hz electricity into DC power. It usually includes linear power supply and switching power supply. Let’s find out together below.
Power wiring: The GP2303CDC stable power supply has two special power wires, called fork-crocodile clip wires. The circuit is tested by connecting the fork wires to the wire posts. Of course, you can also make your own fork-shaped clamp wires, but you need to pay attention to the size of the wires to avoid serious heating of the wires due to too thin wires and low current resistance.
Power switch: DC regulated power supply main switch.
Output switch: switches whether the DC regulated power supply is output to the outside.
Working mode key: used to set the working mode of the dual-channel DC regulated power supply. Both keys are promoted to dual-channel independent outputs. Press the left button while raising the right button to dual-channel serial mode. Press two keys to enter dual channel parallel mode.
Binding post (1): Use wires to lead the electrical signal output from the DC regulated power supply from here and connect it to the circuit board or external load.
Current knob (2): used to set the maximum current allowed to be output by this channel.
Voltage knob (3): used to set the maximum voltage allowed to be output by this channel.
Display (4): used to display the output working status of the power supply. The red digital tube is current and the green digital tube is voltage.
For the above terminals, current knob, voltage knob and display screen, the red part corresponds to CH1 and the blue part corresponds to CH2.
Indicator light: used to indicate the working status of the power supply. The green light represents the AC voltage, that is, the working state of the constant voltage source, and the red light represents the AC voltage, that is, the working state of the constant current source.
In actual use, the power supply basically adopts AC regulated power supply mode, so the AC indicator light should be green under normal circumstances. If the indicator light changes from green to red after the circuit or external load is connected, this means that the output current has exceeded the limit. The power supply must be cut off in time to check the current limiting setting of the power supply and the circuit design or welding errors.
