A power supply circuit for an intelligently controlled infrared remote control intelligent power-saving standby system

Abstract

The invention discloses a power supply electric circuit for an intelligently controlled infrared remote control intelligent electricity saving standby system. The power supply electric circuit comprises a remote control receiving module, a standby signal treatment module and a power supply standby module, wherein the remote control receiving module comprises an infrared receiving chip U2 and a filter, the standby signal treatment module comprises a signal treatment chip U1 and a jumper cap, the power supply standby module comprises a triode Q1 and a field effect transistor Q2, an output of the infrared receiving chip U2 is connected with the filter, an output of the filter is connected with an enable input of the signal treatment chip U1, an output of the signal treatment chip U1 is connected with a basal pole of the triode Q1, a collector of the triode Q1 is connected with a gate of the field effect transistor Q2, a drain of the field effect transistor Q2 is connected with a power supply input, and a source of the field effect transistor Q2 is connected with a power supply output terminal. With the present invention, power consumption of electronic products can be effectively reduced, and service lives of electronic products can be prolonged.

Description

technical field [0001] The invention relates to a power supply circuit, in particular to a power supply circuit for an intelligently controlled infrared remote control intelligent power-saving standby system. Background technique [0002] Existing infrared remote control devices with energy-saving standby function of low-power electronic products use the system main chip to receive the infrared remote control standby signal. When the system main chip analyzes the standby function requirement, the system main chip sends a standby function signal to control the corresponding power supply. , because the main chip system of the system is always in the working state, so the standby power consumption of electronic products using this kind of control technology is relatively high, and the minimum standby power consumption is generally above 1W, and the specific standby power consumption depends on the power consumption of the main chip. Contents of the invention [0003] The obje...

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Problems solved by technology

[0002] Existing infrared remote control devices with energy-saving standby function of low-power electronic products use the system main chip to receive the infrared remote control standby signal. When the system main chip analyzes the standby function requirement, the system main chip sends a standby function signal to control the corresponding power supply. , because the main chip system of the system is always in the working state, so the electronic products using this kind of control technology have high standby power consumption, and the minimum standby power consumption is generally above 1W. The specific standby power consumption depends on the power consumption of the main chip.

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