Patent ID: 9655209
Date: 2017-05-16
CPC Classifications: F21S,F21W,F21Y,H01S,H05B,Y02B

Claim:
1. A constant current and temperature compensation control device for outdoor spotlights used on laser stages, comprising: a laser LED light; a switching tube connected in series with the laser LED light; a current detecting circuit configured for detecting a current flowing through the laser LED light; a heating piece; a driving triode connected in series with the heating piece; a temperature detecting circuit configured for detecting an inner temperature of a receiving cavity housing at least the laser LED light, the heating piece and the temperature detecting circuit; and a single chip microcomputer comprising: a first input pin connected with the current detecting circuit; a first output pin connected with the switching tube and configured for controlling an on-off state of the switching tube to realize a constant current control of the laser LED light based on an detected value of the current detecting circuit; a second input pin connected with the temperature detecting circuit; and a second output pin connected with the driving triode and configured for controlling an on-off state of the driving triode to realize a temperature control within the receiving cavity.