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Accurate voltage regulating and stabilizing device

A voltage regulator and voltage regulation technology, applied in instruments, regulating electrical variables, control/regulating systems, etc., can solve problems such as circuit requirements that cannot meet high precision, high digitization, high reliability, and high stability, etc. Achieve the effect of light weight, high voltage regulation accuracy, and continuously adjustable output voltage

Inactive Publication Date: 2009-05-06
上海三基电子工业有限公司
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AI Technical Summary

Problems solved by technology

[0002] Nowadays, in the case of widespread digital circuits, many instrument voltage regulators still continue the old-fashioned autotransformer voltage regulation mode. This voltage regulation mode can no longer adapt to the current high precision, high digitalization, and high reliability. High performance and high stability circuit requirements, so the birth of the AC precision voltage regulator has supplemented the use design blank in some fields

Method used

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  • Accurate voltage regulating and stabilizing device
  • Accurate voltage regulating and stabilizing device
  • Accurate voltage regulating and stabilizing device

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Embodiment Construction

[0016] The voltage regulating regulator circuit of the present invention will be described in detail below in combination with the accompanying drawings and embodiments.

[0017] refer to figure 1 , which is a schematic block diagram of the precision voltage regulating regulator circuit of the present invention.

[0018] As shown in the figure, the precision voltage regulation regulator includes a low-voltage compensation regulation circuit (astable multivibrator with adjustable duty cycle), sampling circuit, comparator, control circuit, isolation drive circuit, adjustment circuit, electronic switch , D / A circuit, CPU circuit.

[0019] When the CPU outputs a digital voltage signal, the D / A converts it into an analog voltage signal (reference voltage signal) and sends it to the comparator. The comparator compares the sent reference voltage with the sampled voltage. If the reference voltage is high When the sampling voltage is high, the output of the comparator is high, and th...

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Abstract

The invention relates to a precision voltage regulation and stabilization device, which can meet the requirements of precision voltage regulation and stabilization for a high-voltage power supply. The invention is characterized in that the precision voltage regulation and stabilization device comprises a low-voltage compensating regulation and controlling circuit, a sampling circuit, a comparator, a controlling circuit, an isolating driving circuit, a regulator circuit, an electronic switch, a D / A electric circuit and a CPU electric circuit; after a CPU outputs a digital voltage signal, the D / A electric circuit transmits the voltage signal converted by the D / A electric circuit to the comparator, the comparator compares the transmitted reference voltage and the sampled voltage, the electronic switch is turned off after the transmitted reference voltage and the sampled voltage pass through the controlling circuit and the isolating circuit, and the rectified 100Hz voltage flows when the voltage of the sampling end is raised to the reference voltage. The invention has the advantages that compared with the old type mechanical voltage regulator, the precision voltage regulation and stabilization device has small volume, light weight, high voltage regulation precision, and continues and adjustable output voltage, can be directly connected with a monolithic processor to realize remote voltage-stabilized power, and has certain economic benefit.

Description

technical field [0001] The invention relates to a precision voltage regulating regulator, which meets the precision regulating and stabilizing requirements of a high-voltage power supply, and belongs to the technical field of precision voltage regulating. Background technique [0002] Nowadays, in the case of widespread digital circuits, many instrument voltage regulators still continue the old-fashioned autotransformer voltage regulation mode. This voltage regulation mode can no longer adapt to the current high precision, high digitization, and high reliability. High performance and high stability circuit requirements, so the birth of the AC precision voltage regulator has supplemented the use design blank in some fields. [0003] The old-style voltage regulator is different from the precision voltage regulator in terms of volume difference, weight difference, pressure regulation accuracy difference, digital difference, service life difference, manufacturing process differe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M5/257G05F1/445
Inventor 李刚
Owner 上海三基电子工业有限公司
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