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Voltage regulating circuit

A voltage regulating circuit and resistance technology, which is applied in the direction of regulating electric variables, electrical components, control/regulation systems, etc., can solve the problems of unsuitable integrated circuits, large thyristor area, and large power consumption, etc., to achieve small circuit body, The effect of simple circuit structure and low power consumption

Inactive Publication Date: 2014-05-07
ZHENGZHOU DANDIAN TECH SOFTWARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thyristors are generally used as voltage regulating parts in existing circuits, but the thyristors have a large area, generate large heat, and consume large power, which is not suitable for integrated circuits at all. Generally, a voltage regulating circuit is connected outside the chip.

Method used

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  • Voltage regulating circuit

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Embodiment Construction

[0008] The present invention will be described in detail below in conjunction with the drawings.

[0009] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0010] Such as figure 1 Shown is the circuit principle diagram of the voltage regulating circuit of the present invention.

[0011] A voltage regulating circuit of the present invention includes four resistors R1 to R4, an adjustable resistor RW1, an NMOS transistor Q1, a differential amplifier IC1, two voltage regulator tubes W1 and W2, and two capacitors C1 and C2.

[0012] Combine below figure 1 The connection relationship between the above-mentioned electronic components of the present inventi...

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PUM

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Abstract

The invention discloses a voltage regulating circuit. A cathode input end of a differential amplifier of the circuit is grounded through an adjustable resistor and connected to a voltage source through a first resistor. An anode input end of the differential amplifier of the circuit is connected to the voltage source through a second resistor and grounded through a second capacitor and connected to a cathode of a second voltage stabilizing tube. An anode power-supply input end is connected to the voltage source through a third resistor and grounded through a first capacitor and connected to a cathode of a first voltage stabilizing tube. A cathode power-supply input end is grounded and an output end is connected to a grid electrode of an NMOS transistor through a forth resistor. All of an anode of the first voltage stabilizing tube and an anode of the second voltage stabilizing tube and a source electrode of the NMOS transistor are grounded. A drain electrode of the NMOS transistor is used as a cathode of the output end of the voltage regulating circuit. The voltage regulating circuit is smaller in size, lower in power consumption, higher in speed, application to integration and simple in circuit structure.

Description

Technical field [0001] The invention relates to a voltage regulating circuit. Background technique [0002] Voltage regulation is a circuit module often used in circuits to adjust the functional voltage of the circuit. A thyristor is generally used as a voltage regulating component in the existing circuit, but the thyristor has a larger area, higher heat generation, and higher power consumption. It is not suitable for integrated circuits at all. Generally, a voltage regulating circuit is connected to the chip. Summary of the invention [0003] The purpose of the present invention is to provide a voltage regulating circuit with a MOS structure in view of the above-mentioned problems. [0004] The technical scheme adopted by the present invention is as follows: a voltage regulating circuit of the present invention, the circuit includes four resistors, one adjustable resistor, one NMOS transistor, one differential amplifier, two voltage regulator tubes and two capacitance. [0005] Th...

Claims

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Application Information

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IPC IPC(8): H02M3/156
Inventor 焦东杰
Owner ZHENGZHOU DANDIAN TECH SOFTWARE
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