Patent ID: 8520073
Filing Date: 2013-08-27
Classification: H04N

Abstract:
1. A power supply circuit for an infrared cut removable (ICR) filter, comprising: an identifying module configured for generating a first identifying signal when the brightness of external light is higher than a preset brightness and generating a second identifying signal when the brightness of the external light is lower than the preset brightness; a supply mode module configured for generating a power supply corresponding to the power supply mode of the ICR filter, the supply mode module comprising a CPU, and the CPU comprising a supply port that is configured to output the power supply selected from one of a continuous voltage, a pulse voltage, and an instantaneous voltage; a switching module electrically connected to the identifying module and the supply mode module, the switching module comprising a first and a second connecting nodes for connecting to the ICR filter and configured for loading the power supply generated by the supply mode module on one of the first and second nodes according to the first and second identifying signals; and a power source module configured for generating an operating voltage for the identifying module, the supply mode module, and the switching module.