CN201733130U - Power supply management module circuit - Google Patents

Power supply management module circuit Download PDF

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Publication number
CN201733130U
CN201733130U CN2010202632060U CN201020263206U CN201733130U CN 201733130 U CN201733130 U CN 201733130U CN 2010202632060 U CN2010202632060 U CN 2010202632060U CN 201020263206 U CN201020263206 U CN 201020263206U CN 201733130 U CN201733130 U CN 201733130U
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CN
China
Prior art keywords
resistance
diode
voltage input
negative pole
input end
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2010202632060U
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Chinese (zh)
Inventor
赵睿林
吴军生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Zihe Communication Technology Co., Ltd.
Shanghai Municipal Electric Power Co
Original Assignee
SHANGHAI ZIHE COMMUNICATION TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHANGHAI ZIHE COMMUNICATION TECHNOLOGY Co Ltd filed Critical SHANGHAI ZIHE COMMUNICATION TECHNOLOGY Co Ltd
Priority to CN2010202632060U priority Critical patent/CN201733130U/en
Application granted granted Critical
Publication of CN201733130U publication Critical patent/CN201733130U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a power supply management module circuit which comprises a field-effect tube, a comparator, a triode, a first diode, a second diode, a battery, a coil induced voltage input end, and a power supply voltage input end; the coil induced voltage input end is connected with the positive pole of the first diode; the negative pole of the first diode is connected with the negative pole of the second diode; the power supply voltage input end is connected between the negative pole of the first diode and the negative pole of the second diode; and the negative pole of the battery is grounded. Compared with the prior art, the power supply management module circuit has the advantages of simpler design, lower cost and the like.

Description

A kind of power management module circuit
Technical field
The utility model relates to a kind of electric power management circuit, especially relates to a kind of power management module circuit.
Background technology
The range of application of power management chip is very extensive, and the development power management chip is significant for improving the complete machine performance, and is directly related with the demand of system to the selection of power management chip, and the development of digital power managing chip also need be crossed over the cost difficulty.
The world today, people's life has been also to be unable to do without electronic equipment a moment.Power management chip is shouldered the responsibility of conversion, distribution, detection and other electric energy managements to electric energy in electronic apparatus system.Power management chip is indispensable for electronic system, and the quality of its performance has direct influence to machine performance.
Be applied in the power-supply management system more complicated all in the fault detector at present, cost is higher.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of power management module circuit fairly simple, that cost is lower that designs for the defective that overcomes above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of power management module circuit, it is characterized in that, comprise field effect transistor, comparator, triode, first diode, second diode, battery, coil-induced voltage input end, supply power voltage input, described coil-induced voltage input end is connected with the positive pole of first diode, the negative pole of described first diode is connected with the negative pole of second diode, described supply power voltage input is connected between the negative pole of the negative pole of first diode and second diode, the minus earth of described battery;
Described field effect transistor comprises source electrode, drain electrode, grid, described source electrode is connected with the positive pole of battery, described drain electrode is connected with the positive pole of second diode, described grid is connected with coil-induced voltage input end, is in series with resistance R 22, resistance R 36, resistance R 37 between described grid and the coil-induced voltage input end successively;
Described comparator is provided with input anode, input negative terminal, VCC end, output, earth terminal, described input is just terminating between resistance R 36, the resistance R 37, described input negative terminal is by resistance R 31 ground connection, be connected with anode by resistance R 32 simultaneously, described VCC end is connected with anode, described output is connected with anode by resistance R 33, is connected between resistance R 22, the resistance R 36 described earth terminal ground connection simultaneously;
Described triode is provided with base stage, collector electrode, emitter, described base stage is connected between resistance R 22, the resistance R 36 by capacitor C 31, by resistance R 34 ground connection, described collector electrode is connected with main control chip simultaneously, is connected with the supply power voltage input by resistance R 35 simultaneously.
The input voltage of described supply power voltage input is 3.3V.
Compared with prior art, the utlity model has and to realize that fault detector automaticallyes switch between powered battery and induction power taking, and can send low pulse signal during power taking switching to induction, wake main control chip up, design fairly simple, cost is lower.
Description of drawings
Fig. 1 is a circuit diagram of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Embodiment
As shown in Figure 1, a kind of power management module circuit, comprise field effect transistor U5, comparator U3, triode VT5, the first diode D1, the second diode D2, battery BT1, coil-induced voltage input end, supply power voltage input, described coil-induced voltage input end is connected with the positive pole of the first diode D1, the negative pole of the described first diode D1 is connected with the negative pole of the second diode D2, described supply power voltage input is connected between the negative pole of the negative pole of the first diode D1 and the second diode D2, the minus earth of described battery BT1;
Described field effect transistor U5 comprises source S, drain D, grid G, described source S is connected with the positive pole of battery, described drain D is connected with the positive pole of the second diode D2, described grid G is connected with coil-induced voltage input end, is in series with resistance R 22, resistance R 36, resistance R 37 between described grid G and the coil-induced voltage input end successively;
Described comparator U3 is provided with input anode IN+, input negative terminal IN-, VCC end, output OUT, earth terminal GND, described input anode IN+ is connected between resistance R 36, the resistance R 37, described input negative terminal IN-is by resistance R 31 ground connection, be connected with the positive pole of battery by resistance R 32 simultaneously, described VCC end is connected with the positive pole of battery, described output OUT is connected with anode by resistance R 33, is connected between resistance R 22, the resistance R 36 described earth terminal GND ground connection simultaneously;
Described triode is provided with base stage, collector electrode, emitter, described base stage is connected between resistance R 22, the resistance R 36 by capacitor C 31, by resistance R 34 ground connection, described collector electrode is connected with main control chip simultaneously, is connected with the supply power voltage input by resistance R 35 simultaneously.
When bus current is very little, when coil-induced voltage input end voltage VDD_IN was lower than cell voltage VBAT, the output of comparator U3 was a low level.P-channel field-effect transistor (PEFT) pipe U5 conducting, battery BT1 power supply.When bus current increases, when coil-induced voltage input end voltage VDD_IN was higher than a certain value, the output of comparator U3 uprised.Field effect transistor U5 by, battery BT1 stops power supply.Simultaneously, in the engineering that the output of U3 uprises, can produce a high level pulse, make triode VT5 short time conducting in the base stage of triode VT5.Thereby the collector electrode at VT5 produces a low level pulse, is used for waking up main control chip.

Claims (2)

1. power management module circuit, it is characterized in that, comprise field effect transistor, comparator, triode, first diode, second diode, battery, coil-induced voltage input end, supply power voltage input, described coil-induced voltage input end is connected with the positive pole of first diode, the negative pole of described first diode is connected with the negative pole of second diode, described supply power voltage input is connected between the negative pole of the negative pole of first diode and second diode, the minus earth of described battery;
Described field effect transistor comprises source electrode, drain electrode, grid, described source electrode is connected with the positive pole of battery, described drain electrode is connected with the positive pole of second diode, described grid is connected with coil-induced voltage input end, is in series with resistance R 22, resistance R 36, resistance R 37 between described grid and the coil-induced voltage input end successively;
Described comparator is provided with input anode, input negative terminal, VCC end, output, earth terminal, described input is just terminating between resistance R 36, the resistance R 37, described input negative terminal is by resistance R 31 ground connection, be connected with anode by resistance R 32 simultaneously, described VCC end is connected with anode, described output is connected with anode by resistance R 33, is connected between resistance R 22, the resistance R 36 described earth terminal ground connection simultaneously;
Described triode is provided with base stage, collector electrode, emitter, described base stage is connected between resistance R 22, the resistance R 36 by capacitor C 31, by resistance R 34 ground connection, described collector electrode is connected with main control chip simultaneously, is connected with the supply power voltage input by resistance R 35 simultaneously.
2. a kind of power management module circuit according to claim 1 is characterized in that the input voltage of described supply power voltage input is 3.3V.
CN2010202632060U 2010-07-19 2010-07-19 Power supply management module circuit Expired - Lifetime CN201733130U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202632060U CN201733130U (en) 2010-07-19 2010-07-19 Power supply management module circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010202632060U CN201733130U (en) 2010-07-19 2010-07-19 Power supply management module circuit

Publications (1)

Publication Number Publication Date
CN201733130U true CN201733130U (en) 2011-02-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010202632060U Expired - Lifetime CN201733130U (en) 2010-07-19 2010-07-19 Power supply management module circuit

Country Status (1)

Country Link
CN (1) CN201733130U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102340170A (en) * 2010-07-19 2012-02-01 上海资和通信科技有限公司 Power supply management system for fault indicator
CN102624072A (en) * 2012-03-28 2012-08-01 安徽天堂唯高塑业科技有限公司 Circuit of multipurpose mobile power supply

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102340170A (en) * 2010-07-19 2012-02-01 上海资和通信科技有限公司 Power supply management system for fault indicator
CN102340170B (en) * 2010-07-19 2014-01-29 国网上海市电力公司 Power supply management system for fault indicator
CN102624072A (en) * 2012-03-28 2012-08-01 安徽天堂唯高塑业科技有限公司 Circuit of multipurpose mobile power supply
CN102624072B (en) * 2012-03-28 2014-06-18 安徽天堂唯高塑业科技有限公司 Circuit of multipurpose mobile power supply

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: SHANGHAI ELECTRIC POWER CORP.

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20110628

Address after: 201112 No. 1, No. 3585, three Lu Lu, 1, Shanghai, Minhang District

Co-patentee after: Shanghai Electric Power Corporation

Patentee after: Shanghai Zihe Communication Technology Co., Ltd.

Address before: 201112 No. 1, No. 3585, three Lu Lu, 1, Shanghai, Minhang District

Patentee before: Shanghai Zihe Communication Technology Co., Ltd.

AV01 Patent right actively abandoned

Granted publication date: 20110202

Effective date of abandoning: 20140129

RGAV Abandon patent right to avoid regrant