Low-power-consumption correction circuit and automatic correction method for output voltage

A technology of output voltage and correction circuit, which is applied in the direction of output power conversion device, DC power input conversion to DC power output, electrical components, etc. It can solve the problem of high static power consumption, avoid current output instability, and reduce power consumption. , the effect of great application value
CN112187048AActive Publication Date: 2021-01-05SHENZHEN ICOMM SEMICON CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN ICOMM SEMICON CO LTD
Publication Date
2021-01-05

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Abstract

The invention provides a low-power-consumption correction circuit and method for output voltage, relates to the technical field of electronic components, and mainly solves the technical problem of high static power consumption of a linear voltage converter. The low-power-consumption correction circuit for output voltage comprises a source follower and a voltage correction unit connected with the source follower; the voltage correction unit comprises a voltage sensing module, a digital control module and a reference voltage control module which are connected in sequence; and the source followeris connected with the voltage sensing module and the reference voltage control module. According to the low-power-consumption correction circuit for output voltage of the invention, the source follower is adopted to replace a linear voltage converter, and the source follower does not generate static power consumption, so that the power consumption of the system-on-chip of a sensor can be effectively reduced; meanwhile, the voltage correction unit and the voltage correction method are designed, so that the defect of unstable voltage output of the source follower is effectively avoided. Therefore, the circuit provided by the invention has the advantages of low power consumption, stable output and relatively high application value.
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Description

technical field

[0001] The invention relates to the technical field of electronic components, in particular to an output voltage low-power correction circuit and an automatic correction method. Background technique

[0002] Under the current rapid development of wireless communication technology systems, it is increasingly urgent to develop low-cost, high-efficiency, and low-power radio frequency integrated circuits. At present, the world is entering an era of the Internet of Things where various systems need to collect and exchange data. Sensors and In the Internet of Things that transmits data wirelessly, if the sensor is powered by batteries, power consumption is limited and must last for a long time, low-power, low-voltage WiFi plays a vital role. In the power structure design of the system on chip (SoC) of the above sensor, several linear voltage converters are used in the upper layer, and there are two main purposes. One is the DC voltage step-down (VIN-to-VOUT), whic...

Claims

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