Patent ID: 9088755
Filing Date: 2015-07-21
Classification: H04N,H05B,Y02B

Abstract:
1. A constant current control device, comprising: a constant current control module; a switched-mode power supply module, used for providing a stable voltage for a load; wherein the constant current control module comprises: wherein an output terminal of the switched-mode power supply module is electrically connected to an input terminal of the load; an output terminal of the constant current source unit is electrically connected to a first input terminal of the constant current control unit; an output terminal of the load is electrically connected to a second input terminal of the constant current control unit; an output terminal of the feedback unit is electrically connected to a control terminal of the constant current control unit; both of a first input terminal of the feedback unit and a first input terminal of the switched-mode power supply module are electrically connected to a first output terminal of the constant current control unit; and a second input terminal of the feedback unit and a second input terminal of the switched-mode power supply module are both connected to a second output terminal of the constant current control unit.