High-power adjustable voltage-stabilized power supply manufactured by reference voltage source

A reference voltage source and high-power technology, applied in the direction of output power conversion device, AC power input conversion to DC power output, electrical components, etc., can solve the problem of low power conversion efficiency, difficulty in stabilizing power supply, large loss of adjustment tube, etc. question
CN102185503AInactive Publication Date: 2011-09-14黄宇嵩
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
黄宇嵩
Publication Date
2011-09-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the technical fields of electronics and power supplies and discloses a high-power adjustable voltage-stabilized power supply manufactured by a reference voltage source. The voltage-stabilized power supply consists of an alternating current (AC) transformer B and a full-bridge rectifying circuit, a half-wave rectifying and filtering circuit, an adjusting tube BG1, a sampling amplifying circuit, a current-limiting protection circuit and a voltage-dividing and sampling circuit, and is characterized in that: the sampling amplifying circuit consists of a three-end adjustable current-dividing reference voltage source IC1 and a resistor R1; the adjusting tube BG1 is an enhanced N-channel high-power field-effect tube; the current-limiting protection circuit consists of a silicon triode BG2 and a current sampling resistor R2; and the voltage-dividing and sampling circuit consists of a potentiometer RP and a voltage-dividing resistor R3. The adjustable voltage-stabilized power supply outputs heavy current and adjustable voltage, the circuit has an overcurrent protection function, and particularly the conversion efficiency and working reliability of the adjustable voltage-stabilized power supply are improved.
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Description

technical field

[0001] The invention belongs to the technical field of electronics and power supply, and relates to a high-power adjustable voltage-stabilized power supply made of a reference voltage source. Background technique

[0002] High-power adjustable regulated power supply is a necessary equipment for general circuit designers or laboratories. In the past, high-power silicon transistors or germanium transistors were mostly used as regulator tubes in high-power series adjustable regulated power supplies. The main disadvantages are that the regulator tubes have large losses and it is difficult to manufacture regulated power supplies with high output currents, resulting in low power conversion efficiency. In order to solve or make up for various shortcomings of some adjustable regulated power supplies on the market, the high-power adjustable regulated power supply made of the reference voltage source according to the present invention adopts a high-precision three-term...

Claims

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