Three-end integrated voltage-stabilized inverter system based on pulse width modulation circuit

A three-terminal integrated voltage stabilization and pulse width modulation technology, applied in the electronic field, can solve problems such as poor load capacity and voltage instability, and achieve the effects of ensuring stability, reducing leakage current and loss current, and suppressing abnormal fluctuations

Inactive Publication Date: 2016-12-14
CHENGDU HANDAO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of unstable output voltage and poor load capacity of the existing inverter system in the prior art, and provide a three-terminal integrated voltage-stabilizing inverter system based on a pulse width modulation circuit

Method used

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  • Three-end integrated voltage-stabilized inverter system based on pulse width modulation circuit
  • Three-end integrated voltage-stabilized inverter system based on pulse width modulation circuit
  • Three-end integrated voltage-stabilized inverter system based on pulse width modulation circuit

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Embodiment

[0022] Such as figure 1 As shown, the present invention mainly consists of an inverter chip U1, a transformer T, a triode VT1, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R14, a resistor R24, a polar capacitor C1, a polar capacitor C2, and a polar capacitor C3 , Polar capacitor C17, polar capacitor C18, polar capacitor C19, diode D1, Zener diode D13, inductor L1, inductor L2, three-terminal integrated voltage regulator circuit, pulse width modulation circuit, comparison amplifier circuit, voltage detection circuit, And a voltage-controlled oscillator circuit.

[0023] When connected, the positive pole of the polarity capacitor C1 is connected to the base of the triode VT1, and its negative pole is grounded. The P pole of the diode D1 is connected to the emitter of the triode VT1 after passing through the inductor L1, and its N pole is connected to the negative pole of the polarity capacitor C1 after passing through the resistor R1. One end of the r...

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Abstract

The invention discloses a three-end integrated voltage-stabilized inverter system based on a pulse width modulation circuit. The three-end integrated voltage-stabilized inverter system is characterized in that the three-end integrated voltage-stabilized inverter system is mainly composed of an inverter chip U1, a transformer T, a triode VT1, a polar capacitor C2, a polar capacitor C19, a polar capacitor C18, a resistor R14, a three-end integrated voltage stabilizing circuit, a voltage detecting circuit, a pulse width modulating circuit and a voltage-controlled oscillation circuit. The three-end integrated voltage-stabilized inverter system can improve voltage resistance and dynamic range after inversion and furthermore can control intermediate zero offset of voltage current after inversion within 0.5 nA, thereby ensuring high stability of output AC voltage. Furthermore the three-end integrated voltage-stabilized inverter system can reduce leakage current and loss current of the voltage current in inversion and furthermore can suppress abnormal fluctuation of the output current, thereby improving loading capability of the system, namely the loading capability is 80-95% of a rated load.

Description

technical field [0001] The invention relates to the field of electronics, in particular to a three-terminal integrated voltage-stabilizing inverter system based on a pulse width modulation circuit. Background technique [0002] The inverter system converts DC power (battery, storage battery) into AC power (generally 220V, 50Hz sine wave). The inverter system is widely used in air conditioners, home theaters, electric grinding wheels, electric tools, sewing machines, DVD, VCD, computers, TVs, washing machines, range hoods, refrigerators, video recorders, massagers, fans, lighting, etc. With the development of science and technology, the above-mentioned electronic products are also constantly developing, so the requirements for the stability and load capacity of the output voltage of the inverter system are also getting higher and higher. However, the AC voltage output by the existing inverter system is unstable after inversion; and the existing inverter system also has the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/5395H02M1/44
CPCH02M1/44H02M7/5395H02M1/0058Y02B70/10
Inventor 不公告发明人
Owner CHENGDU HANDAO TECH CO LTD
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