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Current-enhanced bipolar switch stabilized voltage supply

A technology of switching regulated power supply and current enhancement, which is applied in the electronic field, can solve problems such as unstable power supply performance, and achieve the effect of improving detection and accuracy

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

[0004] The purpose of the present invention is to overcome the defect of unstable power supply performance in the bipolar power supply in the prior art, and provide a current-enhanced bipolar switching regulated power supply

Method used

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  • Current-enhanced bipolar switch stabilized voltage supply
  • Current-enhanced bipolar switch stabilized voltage supply
  • Current-enhanced bipolar switch stabilized voltage supply

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Embodiment

[0022] Such as figure 1 As shown, the present invention mainly consists of a control chip U1, 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 U1 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, which is connected to the non-identical end of the transformer T secondary side inductance coil L3 through the polar capacitor C6, is connected in series to the voltage between the reference voltage circuit and the VCC pin of the control chip U1 An adjustment circuit, one end of which is connected to the VCC pin of the control chip U1, a resistor R8 whose other end is connected to the voltage ad...

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Abstract

The invention discloses a current-enhanced bipolar switch stabilized voltage supply. The current-enhanced bipolar switch stabilized voltage supply is characterized by mainly comprising a control chip U1, a transformer T, a reference voltage circuit, a triode VT1, a diode D1, a polar capacitor C7, a triode current expansion circuit, a microprocessor circuit, a voltage regulation circuit, a switch control circuit and the like, wherein the triode current expansion circuit is connected with an OUT pin of the control chip U1; the microprocessor circuit is connected between the reference voltage circuit and a primary induction coil L1 of the transformer T in series; the voltage regulation circuit is connected between the reference voltage circuit and a VCC pin of the control chip U1 in series; and the switch control circuit is connected with the OUT pin and an I pin of the control chip U1 separately. According to the current-enhanced bipolar switch stabilized voltage supply, the input voltage can be automatically regulated; and the condition that the current-enhanced bipolar switch stabilized voltage supply can output stable voltage is effectively ensured, so that the detection accuracy on various functions of a battery protection circuit board is improved.

Description

technical field [0001] The invention relates to the field of electronics, in particular to a current-enhanced bipolar switching stabilized voltage power supply. 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 pole to the negati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/335
CPCH02M3/33523H02M1/0022
Inventor 不公告发明人
Owner CHENGDU JUHUICAI TECH
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