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Low-power-consumption control method and circuit

A control method and technology with low power consumption, applied in control/regulation systems, electrical components, regulating electrical variables, etc., can solve problems such as high power loss, power loss, and reduced reliability of MOS devices

Active Publication Date: 2013-04-03
BEIJING INST OF CONTROL ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The power supply line adopts the method of cascading power MOSFETs (or power triodes) at the output end of the secondary power supply circuit for voltage regulation, resulting in a large power loss on the MOSFET, which reduces the power of the MOS device while unnecessary loss of power. reliability

Method used

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Embodiment Construction

[0035] The present invention will be further introduced below in conjunction with the accompanying drawings.

[0036] Such as figure 2 As shown, the method of the present invention realizes the continuous control of the load output power through the following steps after the load works:

[0037] 1. Use the sensor installed on the load to obtain the state signal V that changes proportionally to the working state of the load 1

[0038] After the load works, its working state changes with the output power, and the sensor installed on the load can generate corresponding electrical signals through the induction of the working state of the load. An application of the present invention on a spacecraft refrigerator For example, the working state of the refrigerator is the working temperature of the refrigerator, and the sensor adopts a thermistor. By sensing the working temperature of the refrigerator, a voltage signal that changes in the same proportion as the working temperature ...

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Abstract

The invention discloses a low-power-consumption control method used for load which has a continuously changing working state. The low-power-consumption control method includes the following steps: obtaining a state signal V1 changing in direct ratio with the load working state by aid of a sensor arranged on the load; using the state signal V1 and a reference signal V2 to generate a differential control signal V3; overlying the differential control signal V3 and a constant signal to generate an output signal Vout1+ used for controlling the load. The invention further discloses a circuit corresponding to the low-power-consumption control method. By adopting the low-power-consumption control method and circuit, continuously changing control signals can be supplied to the load having the continuously changing working state, and accordingly the load is ensured to have continuous power output; and simultaneously, compared with the prior art, the low-power-consumption control method and circuit remarkably reduce power consumption and improve reliability.

Description

technical field [0001] The invention belongs to the field of circuit design, and relates to a low power consumption control method for a load with continuously changing working state characteristics and a low power consumption control circuit for the load. Background technique [0002] The star sensor is an important attitude measurement component in the satellite control system, which includes the probe circuit, data processing circuit, refrigerator control circuit and secondary power supply circuit of the star sensor. The power input of the star sensor is the primary power bus, and various secondary power sources used inside are provided by the secondary power circuit installed inside the star sensor. [0003] The refrigerator used in the star sensor has a one-way refrigeration control function. According to the working characteristics of the refrigerator, when the temperature needs to be lowered in a large range, the secondary power supply circuit is required to provide ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/156
Inventor 叶东东彭宇雷海军高文文武延鹏周世安周新发张巍杜建华李山王艳宝
Owner BEIJING INST OF CONTROL ENG
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