To introduce the common way that move light LED light bulb

now store the more common LED dimming power supply include thyristor dimmer power and 0 10 v adjustable light power supply, and our first LED dimming method is first the two, we introduce LED below small make up for the common dimming method.

1, the silicon controlled dimmer power

silicon controlled dimmer earlier before they are applied to the incandescent lamp and energy-saving lamp dimming method, and is applied to the LED dimming the broader range of a dimming method.

it is the operation principle of the input voltage waveform after conduction Angle cutting wave, produce a tangential output voltage waveform. Applied the principle of tangential cutting back output voltage effective value, in order to reduce the average load ( Resistance load) The power. Silicon controlled dimmer's strength is that higher work efficiency, stable performance.

2 0 - 10 v dimmer power

power supply design with a control chip, 0 When 10 v dimmer, through 0 10 v voltage change, change the power supply output current, light reduction. For example: when 0 10 v dimmer modulation to 0 v, the current drop to zero, and the lamp brightness is closed ( There is a switch effect) When 0 10 v dimmer up 10 v, the output current will be 100% of the output power, brightness will be 100%. ( The output voltage is the same) 。

0 - 10 v dimmer principle: as mentioned, dimmers is only 1 - 10 v: resistance when the dimmer switch to 1 v, the change of the output current is 10%, such as to 10 v ( Transferred to the big) , the output current will be 100% of the output power, brightness will be 100%. ( The output voltage is the same) 。 Padding: 1 - 10 v is no switch function, lamps and lanterns can not be transferred to the effect of closed!