Power supply control device and power supply control system

A power control device and control terminal technology, which is applied to circuit devices, battery circuit devices, current collectors, etc., can solve the problem of many pin resources, and achieve the effects of saving pin resources, improving utilization, and saving system costs
CN102780246AActive Publication Date: 2012-11-14SG MICRO
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
SG MICRO
Publication Date
2012-11-14

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Abstract

The invention provides a power supply control device and a power supply control system. The device comprises a first input node, a first comparator, a second comparator, a controlled source, an amplifier, an or logic gate circuit, a delay circuit, a first NAND logic gate circuit and a second NAND logic gate circuit. By the power supply control device and the power supply control system, the problem that a power supply system in the related technology occupies much pin resources is solved; the pin resources and the system cost are saved; and the utilization rate of pins is improved.
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Description

technical field

[0001] The invention relates to the field of power supplies, in particular to a power supply control device and a power supply control system. Background technique

[0002] In electronic equipment, the power supply system is an essential component of the equipment, and the power supply system ensures the functions of opening, maintaining and closing the equipment. Existing power system designs such as figure 1 As shown, it includes the control terminal circuit, the main power supply system and the microprocessor of the powered system, wherein the control terminal circuit controls the output voltage; the main power supply system realizes the start, stop and maintenance of the equipment according to the output of the control terminal circuit; the powered system The microprocessor is used for detecting the state of the button on the circuit end of the control end and the output state of the power supply of the device.

[0003] use figure 1 The power system sh...

Claims

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