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Parallel type low-power direct-current voltage-stabilized power supply

A DC stabilized power supply, parallel technology, applied in the direction of DC power input conversion to DC power output, AC power input conversion to DC power output, output power conversion device, etc., can solve the problem of large loss of the adjustment tube and power conversion efficiency Low, difficult to stabilize power supply and other issues

Inactive Publication Date: 2015-04-29
吴建堂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, the adjustment tubes in the series adjustable regulated power supply mostly used high-power germanium transistors. The main defect is that the loss of the adjustment tubes is large, resulting in low power conversion efficiency, and it is not easy to produce a high-current output regulated power supply.

Method used

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  • Parallel type low-power direct-current voltage-stabilized power supply

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Embodiment Construction

[0007] According to attached figure 1 The working principle diagram and accompanying drawings of the parallel-connected low-power DC stabilized power supply circuit are shown, and the connection relationship between the components in each part of the circuit described in the summary of the invention, and the technical parameter requirements of the components described in the implementation mode The present invention can be realized by implementing the key points of circuit making, and the related technologies of the present invention will be further described below in conjunction with the embodiments.

[0008] Technical solution: parallel low-power DC stabilized power supply, which includes 220V AC power supply, AC step-down full-bridge rectifier and filter circuit, current limiting protection and voltage adjustment circuit, parallel voltage regulator, characterized in that:

[0009] AC step-down full-bridge rectification and filter circuit: the two ends of AC transformer B pr...

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Abstract

The invention provides a parallel type low-power direct-current voltage-stabilized power supply which is characterized by comprising a 220 V alternating-current power supply, an alternating-current voltage-reduced full-bridge rectification and filter circuit, a current limiting protection and voltage regulation circuit and a parallel type voltage stabilizer. The parallel type low-power direct-current voltage-stabilized power supply provided by the invention is a voltage-stabilized power supply without a voltage stabilizing diode, can be continuously regulated in output voltage within 0-9 V, can be used for outputting higher working current and greatly improving the transformation efficiency and working reliability of a power supply because the circuit is simple, and is suitable for being used as a working power supply of various low-power electric appliances.

Description

technical field [0001] The invention belongs to the technical field of electronics and regulated power supplies, and relates to a parallel low-power DC regulated power supply. Background technique [0002] Adjustable DC stabilized power supply is a necessary electronic equipment for general electronic engineering technicians, laboratories and families. In the past, high-power germanium transistors were mostly used as regulator tubes in series adjustable regulated power supplies. The main defect is that the regulator tubes have a large loss, resulting in low power conversion efficiency, and it is not easy to produce a regulated power supply with high current output. In order to make up for the shortcomings of some adjustable regulated power supplies on the market, the parallel-connected low-power DC regulated power supply of the present invention is a regulated power supply without a zener diode, and its output voltage is not only continuously adjustable from 0 to 9V , and c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/06H02M3/156
CPCH02M7/217H02M3/155
Inventor 吴建堂
Owner 吴建堂
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