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Bipolar switch voltage-stabilizing power supply based on audion current expanding circuit

A switching regulated power supply and transistor technology, applied in the field of electronics, can solve the problems of unstable power supply voltage performance, affecting use and promotion, inaccurate function detection of battery protection circuit boards, etc., to improve the accuracy and improve the detection effect.

Inactive Publication Date: 2016-09-28
CHENGDU JUHUICAI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current bipolar power supplies on the market have the problem of unstable power supply voltage performance, which leads to inaccurate detection of various functions of the battery protection circuit board, which seriously affects its deep-level use and promotion.

Method used

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  • Bipolar switch voltage-stabilizing power supply based on audion current expanding circuit
  • Bipolar switch voltage-stabilizing power supply based on audion current expanding circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0019] like figure 1 As shown, the present invention mainly consists of a control chip U, a transformer T, a reference voltage circuit, a triode VT1, a triode current expansion circuit connected to the OUT pin of the control chip U, and the N pole is connected to the AO tube of the control chip U after a resistor R11 Diode D1 with pins connected, P pole connected to the base of triode VT1, positive pole connected to the collector of triode VT1 after resistor R12, polarity capacitor C7 with negative pole grounded, P pole and transformer T secondary inductance coil L3 The diode D5 connected to the non-identical terminal of the transformer T secondary side inductance coil L3 after the N pole is connected to the terminal of the same name of the transformer T secondary side inductance coil L3 through the polar capacitor C6, one end is connected to the VCC pin of the control chip U, and the other end is connected to the reference voltage circuit Connected resistor R8, a microprocess...

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PUM

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Abstract

The invention discloses a bipolar switching stabilized power supply based on a triode current expansion circuit, which is characterized in that it is mainly composed of a control chip U, a transformer T, a reference voltage circuit, a triode VT1, a diode D1, a polar capacitor C7, and a control The triode current expansion circuit connected to the OUT pin of the chip U, the microprocessing circuit connected in series between the reference voltage circuit and the primary inductance coil L1 of the transformer T, and the I tube connected to the triode current expansion circuit and the control chip U respectively It is composed of a switch control circuit connected to the feet. The invention can automatically adjust the input voltage, effectively ensuring that the invention can output a stable voltage, thereby improving the accuracy of the invention for detecting various functions of the battery protection circuit board.

Description

technical field [0001] The invention relates to the field of electronics, in particular to a bipolar switch stabilized voltage supply based on a triode current expansion circuit. Background technique [0002] At present, battery manufacturers generally need to use a bipolar power supply to check whether the functions of the battery protection circuit board have reached the standard after making the battery protection circuit board. Quick calibration and testing of voltage, undervoltage and overcurrent. The so-called bipolar power supply means that when the power supply is discharged, the current inside the power supply flows from the negative pole to the positive pole, and when the power supply is charged, the current inside the power supply flows from the positive pole to the negative pole (the internal current of the traditional common power supply no matter whether it is In any case, it can only flow from the negative pole to the positive pole, but not from the positive ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/335
CPCH02M3/33523
Inventor 不公告发明人
Owner CHENGDU JUHUICAI TECH
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