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Adjccstable AC stable voltage stable current power supply

A technology of constant current power supply and AC voltage stabilization, applied in the field of power supply, can solve the problems of bad output waveform, bulky equipment, non-continuous output voltage, etc., and achieve the effect of continuously adjustable input and output voltage and good waveform

Inactive Publication Date: 2008-08-27
章祖文
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the AC regulated power supply generally adopts the silicon controlled rectifier circuit technology or the technology of adjusting the interlinkage magnetic flux between the two coils of the transformer or the coil shifting technology to realize voltage regulation. The first technology is because the output voltage is controlled by the conduction angle of the silicon controlled rectifier. The output waveform is not good; the second technical equipment is bulky; the third technical output voltage cannot be continuous

Method used

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  • Adjccstable AC stable voltage stable current power supply
  • Adjccstable AC stable voltage stable current power supply
  • Adjccstable AC stable voltage stable current power supply

Examples

Experimental program
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Embodiment 1

[0013] Embodiment 1: using the second transformer B2

[0014] The present invention is composed of a main AC voltage and current forming circuit, a secondary AC voltage and current forming circuit, an AC voltage and current synthesis circuit, a voltage sampling circuit, a signal control circuit, a power supply protection circuit and an auxiliary power supply circuit. The main AC voltage and current forming circuit provides the load ZL The main AC voltage and current, the fluctuation of the effective value of the AC voltage and current generated by the main AC voltage and current forming circuit in the load ZL is taken out by the voltage sampling circuit, and sent to the signal control circuit for amplification to form a control signal, which automatically controls the secondary AC The triode capacitor voltage regulating circuit in the voltage and current forming circuit outputs the magnitude of the AC voltage and current, so as to smooth out the fluctuation of the effective val...

Embodiment 2

[0022] Embodiment 2: No second transformer B2 is used

[0023] The structure of embodiment 2 is basically the same as embodiment 1, the difference is:

[0024] The main AC voltage and current forming circuit is composed of a triode capacitor voltage regulating protection circuit, a three-pole double throw switch K2, a fourth fuse BX4, a filter inductor L1, a sampling inductor L2 and a load ZL, wherein the triode capacitor voltage regulating protection circuit includes the first and second Composite transistors GTR1, GTR2, first and second transistors BG1, BG2, first and second adjustable resistors W1, W2, first to fifth resistors R1--R5, first and second capacitors C1 and C2, first to second Six diodes D1--D6, the collector of the first composite transistor GTR1 is connected in series with the first fuse BX1 and then connected to one end of the mains 220V, the emitter of the first composite transistor GTR1 is connected to the emitter of the second composite transistor GTR2, an...

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Abstract

Besides circuit of auxiliary source, the disclosed power source includes main AC voltage and current forming circuit, auxiliary AC voltage and current forming circuit, AC voltage and current combining circuit, voltage sampling circuit, and signal control circuit. The main AC voltage and current forming circuit supplies main AC voltage and current to load, and auxiliary AC voltage and current forming circuit supplies additional voltage and current to load. Effective value fluctuation of AC voltage and current in load caused by the main AC voltage and current forming circuit is flattened by auxiliary AC voltage and current forming circuit under control of main AC voltage and current forming circuit so as to obtain stable AC voltage and current on the load. Transformer is needed if output voltage is higher than 220V. Input and output voltages are adjustable, and waveform is favorable. The invention is applicable to industrial and research department.

Description

technical field [0001] The invention relates to a power supply, in particular to an adjustable AC voltage and current stabilized power supply. Background technique [0002] At present, the AC regulated power supply generally adopts the silicon controlled rectifier circuit technology or the technology of adjusting the interlinkage magnetic flux between the two coils of the transformer or the coil shifting technology to realize voltage regulation. The first technology is because the output voltage is controlled by the conduction angle of the silicon controlled rectifier. The output waveform is not good; the second technical equipment is bulky; the third technical output voltage cannot be continuous. Contents of the invention [0003] The purpose of the present invention is to provide an AC stabilized voltage and stabilized current power supply with continuously adjustable input and output voltages and good waveforms. [0004] The purpose of the present invention is achieved...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M5/22H02M5/04
Inventor 章祖文
Owner 章祖文
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