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A SCR automatic switching excellent power supply

An automatic switching and excellent technology, applied in the electronic field, can solve the problems of high cost and unsuitable product popularization, and achieve the effects of high reliability, strong anti-back pressure ability and strong reliability

Active Publication Date: 2019-03-15
CHONGQING NINGLAI SCI & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Difficulty 5. Some materials propose to use relays for switching. This scheme has many shortcomings. One of the important shortcomings is power consumption. Difficulty 6 is that some schemes are too expensive to be popularized.

Method used

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  • A SCR automatic switching excellent power supply
  • A SCR automatic switching excellent power supply

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0063] figure 1 figure 2 A production instance is expressed.

[0064] 1. Selected components: the withstand voltage value of the AC voltage regulator transistor is ≥100V. 3DD15 is a high back pressure high power tube,

[0065] The voltage stabilizing value of the backup voltage stabilizing tube is higher than the stabilizing value formed by the working voltage stabilizing tube of the AC power supply unit connected in series with the trimming resistor of the AC power supply unit.

[0066] The DC conversion thyristor is a one-way thyristor.

[0067] AC stabilized voltage overvoltage protection resistor with a power of 1W.

[0068] The backup regulator tube and the AC power supply regulator tube use a power of 1W.

[0069] 2. Welding: a kind of silicon controlled rectifier automatically switches excellent power supply, and its specific electronic circuit is in accordance with figure 1 welding.

[0070] 3. Inspection and debugging of power-on: first connect the power suppl...

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PUM

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Abstract

An excellent power supply with thyristor automatic switching, which belongs to the field of electronic technology, consists of a DC power supply rectifier unit, an AC power supply rectifier unit, a lightning strike protection unit, an AC power supply unit, a load unit, an overvoltage protection unit, a storage battery, a pulse charging unit, and a conversion The control unit is composed of a thyristor conversion unit. The isolation diodes of the two rectification units are connected to the lightning protection unit. The output of the rectification power rectification unit is connected to the pulse charging unit to charge the battery. The output of the AC power supply rectification unit is connected to the AC power supply unit and the conversion control unit. unit, the overvoltage protection unit is connected to the AC power supply unit. After connecting the load unit, when there is AC, the conversion control unit starts, and the thyristor conversion unit is disconnected to form an AC power supply circuit. When there is no AC, the conversion control unit When the unit is cut off, the thyristor conversion unit is started to form a DC power supply circuit. The two circuits do not interfere with each other, have strong adjustability, and can widely adapt to the needs of the load.

Description

technical field [0001] The invention belongs to the field of electronic technology. Background technique [0002] The voltage regulator is an important part of electronic products, and its excellent performance is directly related to the overall performance, so there are many excellent voltage regulator integrated circuits, such as 78 series, 79 series and so on. Although the above-mentioned integrated series have many advantages, they still cannot meet the ever-changing needs. [0003] For example, the company has applied for several products related to security equipment. The products of these devices have very high requirements on the power supply, which is far higher than that of ordinary household appliances, and the traditional design scheme is not competent. The reasons are as follows: [0004] One is that the power supply is often an electrical appliance, the key part that is most likely to fail, and it is the same for ordinary household appliances. This is espec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M1/32H02J9/06H02H9/04H02H9/02
CPCH02H9/02H02H9/04H02J9/06H02M1/32H02J9/068H02M1/325
Inventor 不公告发明人
Owner CHONGQING NINGLAI SCI & TRADE
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