The power supply design is equipped with a control chip. When connected to a 0-10V dimmer, the output current of the power supply is changed and the brightness is reduced by varying the 0-10V voltage. For example, when the 0-10V dimmer is modulated to 0V, the current drops to 0, and the brightness of the light is in the off state (with a switch function). When the 0-10V dimmer is increased to a maximum of 10V, the output current will reach 100% of the power output, and the brightness will also be 100% The output voltage remains constant
Principle of 1-10V dimming:
As explained above, the dimmer is only 1-10V. When the resistor dimmer is set to a minimum of 1V, the output current is also changed by 10%. If it reaches 10V (set to the maximum), the output current will reach 100% of the power output, and the brightness will also be 100% The output voltage remains constant Note: 1-10V does not have a switch function, so the lamp cannot be turned off to the lowest setting! PWM (Pulse Width Modulation): Equivalent to a control system
1. It is also dimmed by 1-10V or 0-10V, but the control system can control multiple circuits to dim, and can load thousands (tens of thousands) of watts of light, while the dimmer can only load a maximum of about 200-300W
2. PWM (Pulse Width Modulation) system, which can be connected to a computer for network control, facilitates the control of 0/1-10V dimming devices. There are two independent circuits inside the device, one is a normal voltage circuit used to turn on or off the power supply to the lighting equipment, and the other is a low voltage circuit, which provides a reference voltage and tells the lighting equipment the dimming level. The 0-10V dimming controller was previously commonly used for dimming control of fluorescent lamps. Now, because a constant power supply is added to the LED driver module and there is a dedicated control circuit, the 0-10V dimmer can also support a large number of LED lighting