Patent ID: 9462659
Filing Date: 2016-10-04
CPC Classification: H05B

Claim Text:
1. A method for driving light adjustments, comprising following steps of: for a first time connecting a light source driving circuit which supplies a light source and an MCU with electricity, and thereafter driving the light source to gradually vary brightness according to a predefined firmware program by the light source driving circuit which is controlled by the MCU; after the light source driving circuit is disconnected, a temporary power supplying circuit continuing to supplying the MCU with electricity; when the light source is at a state of gradually varying the brightness and at an instant of disconnecting the light source driving circuit, the MCU obtaining a temporary brightness state of the light source at the instant of disconnecting the light source driving circuit and then temporarily storing information about the brightness state; after the temporary power supplying circuit is drained, the stored information about the brightness state vanishing; connecting the light source driving circuit when the information about the brightness state remains, and then driving the light source to work according to the information about the constant brightness state by the light source driving circuit which is controlled by the MCU; and connecting the light source driving circuit after the information about the brightness state vanishes, and then driving the light source to gradually vary the brightness according to the predefined firmware program by the light source driving circuit which is controlled by the MCU; and further comprising following step of: when the light source is working at the constant brightness state and when the information about the brightness state remains, disconnecting the light source driving circuit and then the MCU eliminating the stored information about the brightness state.