Led lamp control circuit having power saving function and power saving control method thereof
AssigneeHon Hai Precision Industry Co., Ltd.
InventorMING-YUAN HSU
Life of this patent
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Abstract
A light emitting diode (LED) lamp control circuit having power saving function includes a control switch, a LED lamp, a battery, and a controller. The battery is connected to the LED lamp to supply power via the control switch. The controller is connected to the control switch and the battery to detect voltage values of the battery and control the control switch. The controller outputs different control signals to control the switching time of the control switch to drive the LED lamp to emit light at different intensity according to the voltage value of the battery.
Claims8
A light emitting diode (LED) lamp control circuit with power saving function, comprising:
- a control switch;
- a LED lamp;
- a battery connected to the LED lamp to supply power via the control switch;
- and
- a controller connected to the control switch and the battery, the controller being capable of detecting voltage values of the battery and controlling the control switch;
- wherein the controller outputs different control signals according to the voltage value of the battery to control the switching time of the control switch to drive the LED lamp emit light at different intensity.
Dependencies are inferred from the claim text.