CN103293982A - Power source manager - Google Patents
Power source manager Download PDFInfo
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- CN103293982A CN103293982A CN2013102229557A CN201310222955A CN103293982A CN 103293982 A CN103293982 A CN 103293982A CN 2013102229557 A CN2013102229557 A CN 2013102229557A CN 201310222955 A CN201310222955 A CN 201310222955A CN 103293982 A CN103293982 A CN 103293982A
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Abstract
The invention relates to a power source manager. The power source manager comprises an input and output unit and a digital-analog voltage distributing module which respectively access into working voltage Vin and are connected to each other. Output is inputted to the digital-analog voltage distributing module to enable the same to enter the working state. The power source manager has the advantages that the input and output unit controls starting and stopping of the digital-analog voltage distributing module through two switches, the circuit is simple, the digital-analog voltage distributing module supplies power to simulation devices and digital devices in the circuit respectively, a simulation power source and a digital power source are isolated and stability of the circuit is guaranteed.
Description
Technical field
The present invention relates to power circuit, relate in particular to a kind of power supervisor.
Background technology
Power supervisor mainly is responsible for identification power supply amplitude, promotes late-class circuit and carries out power output.When power supervisor connects analog device and digital device simultaneously, can't realize the isolation of analog power and digital power, thereby reduce the stability of entire circuit.
Summary of the invention
The object of the invention is to overcome the deficiency of above prior art, and a kind of simple, reliable power supervisor is provided, and specifically has following technical scheme to realize:
Described power supervisor, comprise input and output amount unit and digital-to-analogue voltage distribution module, described input and output amount unit and digital-to-analogue voltage distribution module be cut-in operation voltage Vin respectively, input and output amount unit is connected with digital-to-analogue voltage distribution module, output quantity is sent into digital-to-analogue voltage distribution module, and described output quantity makes digital-to-analogue voltage distribution module enter duty.
The further design of described power supervisor is that described input and output amount unit comprises control branch road, first power management chip and latching circuit, and described first power management chip is connected with described control branch road and latching circuit respectively.
The further design of described power supervisor is that the signal output part of described first power management chip connects the control end of latching circuit and first power management chip successively, and the control end of first power management chip is by the first divider resistance ground connection.
The further design of described power supervisor is, described control branch road comprises enable switch and cutoff switch, described enable switch is connected in series with cutoff switch, the control branch road is with respect to the described operating voltage Vin of enable switch one termination, other end ground connection, the control end of described first power management chip is connected in node between enable switch and the cutoff switch by second divider resistance, described enable switch receives first input quantity, described first input quantity makes described first power management chip enter duty, described cutoff switch receives second input quantity, and described second input quantity makes first power management chip be in off working state.
The further design of described power supervisor is that described digital-to-analogue voltage distribution module comprises at least one Power Management Unit, and described first power management chip connects described Power Management Unit.
The further design of described power supervisor is, described each Power Management Unit comprises start-up circuit and second source managing chip, and the control end of described second managing chip is connected with the signal output part of first power management chip by described start-up circuit.
The further design of described power supervisor is, described start-up circuit is connected to form by diode and the 3rd divider resistance, the negative pole of described diode is connected with the control end of second source managing chip, the positive pole of diode connects an end of described the 3rd divider resistance, and the other end of the 3rd divider resistance connects the output terminal of first power management chip.
The further design of described power supervisor is that the control end of described second source managing chip connects simulation ground by the 4th divider resistance.
Advantage of the present invention is as follows:
Power supervisor provided by the invention, wherein, input and output amount unit is by the start and stop of two switch digital-to-analogue voltage distribution modules, and circuit is succinct, is convenient to operation; Digital-to-analogue voltage distribution module is given analog device and the digital device power supply in the circuit respectively, has realized the isolation of analog power and digital power, has guaranteed the stability of circuit.
Description of drawings
Fig. 1 is the module diagram of described power supervisor.
Fig. 2 is the circuit diagram of described power supervisor.
Embodiment
Below in conjunction with accompanying drawing the present invention program is elaborated.
As Fig. 1, power supervisor comprises input and output amount unit and digital-to-analogue voltage distribution module, and input and output amount unit and digital-to-analogue voltage distribution module be cut-in operation voltage Vin respectively, and Vin is 7.4 ~ 8.4V that two joint lithium batteries provide.Input and output amount unit is connected with digital-to-analogue voltage distribution module, and output quantity is sent into digital-to-analogue voltage distribution module, and output quantity makes digital-to-analogue voltage distribution module enter duty, is the late-class circuit power supply.
Input and output amount unit comprises enable switch S1, cutoff switch S2 and first power management chip.In the present embodiment, it is the S-T111B33 of 3.3V that first power management chip is selected output voltage for use, hereinafter is called for short and makes ST33.The control end of ST33 is imported termination Vin by divider resistance R27 ground connection.S1 is connected in series with S2 and forms the control branch road.Preferably, the control branch road also comprises a divider resistance R22, and S1, R22, S2 are connected in series according to this.The control branch road is with respect to S1 one termination operating voltage Vin, other end ground connection.The control end Vk of ST33 is connected between S1 and the S2 by R23.S1 receives first input quantity, and first input quantity makes ST33 enter duty.S2 receives second input quantity, and second input quantity makes ST33 be in off working state.
The digital-to-analogue voltage distribution module of present embodiment comprises two Power Management Unit, i.e. first, second Power Management Unit.Each Power Management Unit comprises start-up circuit and power management chip, and power management chip is respectively second, third power management chip.Present embodiment adopts S-T111B33 and S-T111B50 respectively, hereinafter is called for short respectively and makes ST33A and ST50.The control end Vk of ST33A connects simulation ground by R46, and the control end Vk of ST50 connects digitally by R45.The control end Vk of ST33A, ST50 is connected with the output end vo ut of ST33 by start-up circuit again.Start-up circuit is connected to form by diode and divider resistance.The control end of second, third power management chip respectively with the corresponding connection of negative pole of diode D4, D3.The positive pole of diode D4, D3 is a corresponding end that connects divider resistance R40, R25 respectively, and the other end of divider resistance R40, R25 connects the output end vo ut of ST33 respectively.
The power supervisor that present embodiment provides enters duty: connect power supply, after pressing S1, input voltage is through R22, R23 and R27 series connection dividing potential drop, trigger voltage is added on the switch control end VK of ST33, ST33 work, its output end vo ut output 3.3V voltage, this voltage is sent to the control end of three power management chips again respectively.At this moment, though release button S1, the V3 of ST33 output, i.e. 3.3V voltage is added to the switch control end of ST33 by R26 and D2, has formed self-locking, makes ST33 keep output; Start working behind the trigger voltage that ST50, ST33A control end also obtain being provided by V3 simultaneously, for late-class circuit work provides V5, i.e. 5V voltage and AV3, i.e. 3.3V voltage.
The power supervisor that present embodiment provides enters off working state: when power work, press S2, the control end of ST33 is by the R23 resistance eutral grounding, the switch control end of ST33 is drawn to be low level, and ST33 quits work, the output of output end vo ut no-voltage, be that V3 becomes 0V, the switch control end of ST50, ST33A becomes low level, and ST50, ST33A also quit work, the late-class circuit outage.
In the present embodiment, Vin process S-T111B33 exports the voltage of V3, AV3 two-way 3.3V respectively, and the analog device and the digital device that offer respectively in the circuit use, and have realized the isolation of analog power and digital power, have guaranteed the stability of system.
Claims (8)
1. power supervisor, it is characterized in that comprising input and output amount unit and digital-to-analogue voltage distribution module, described input and output amount unit and digital-to-analogue voltage distribution module be cut-in operation voltage Vin respectively, input and output amount unit is connected with digital-to-analogue voltage distribution module, output quantity is sent into digital-to-analogue voltage distribution module, and described output quantity makes digital-to-analogue voltage distribution module enter duty.
2. power supervisor according to claim 1, it is characterized in that described input and output amount unit comprises control branch road, first power management chip and latching circuit, described first power management chip is connected with described control branch road and latching circuit respectively.
3. power supervisor according to claim 2, it is characterized in that the signal output part of described first power management chip connects the control end of latching circuit and first power management chip successively, the control end of first power management chip is by the first divider resistance ground connection.
4. power supervisor according to claim 2, it is characterized in that described control branch road comprises enable switch and cutoff switch, described enable switch is connected in series with cutoff switch, the control branch road is with respect to the described operating voltage Vin of enable switch one termination, other end ground connection, the control end of described first power management chip is connected in node between enable switch and the cutoff switch by second divider resistance, described enable switch receives first input quantity, described first input quantity makes described first power management chip enter duty, described cutoff switch receives second input quantity, and described second input quantity makes first power management chip be in off working state.
5. power supervisor according to claim 2 is characterized in that described digital-to-analogue voltage distribution module comprises at least one Power Management Unit, and described first power management chip connects described Power Management Unit.
6. power supervisor according to claim 5, it is characterized in that described each Power Management Unit comprises start-up circuit and second source managing chip, the control end of described second managing chip is connected with the signal output part of first power management chip by described start-up circuit.
7. power supervisor according to claim 6, it is characterized in that described start-up circuit is connected to form by diode and the 3rd divider resistance, the negative pole of described diode is connected with the control end of second source managing chip, the positive pole of diode connects an end of described the 3rd divider resistance, and the other end of the 3rd divider resistance connects the output terminal of first power management chip.
8. power supervisor according to claim 6 is characterized in that the control end of described second source managing chip connects simulation ground by the 4th divider resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310222955.7A CN103293982B (en) | 2013-06-06 | 2013-06-06 | A kind of power supervisor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310222955.7A CN103293982B (en) | 2013-06-06 | 2013-06-06 | A kind of power supervisor |
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| Publication Number | Publication Date |
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| CN103293982A true CN103293982A (en) | 2013-09-11 |
| CN103293982B CN103293982B (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310222955.7A Expired - Fee Related CN103293982B (en) | 2013-06-06 | 2013-06-06 | A kind of power supervisor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784956A (en) * | 2016-03-11 | 2016-07-20 | 南京信息工程大学 | Water body layering sampling testing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006072446A (en) * | 2004-08-31 | 2006-03-16 | Systemneeds Inc | Power supply control system for electronic device by means of user authentication at entry and exit |
| CN101351007A (en) * | 2008-09-09 | 2009-01-21 | 深圳华为通信技术有限公司 | Method and apparatus for implementing one-key type computer opening/closing |
| CN201780320U (en) * | 2010-07-30 | 2011-03-30 | 深圳安博电子有限公司 | Testing system |
| US20120233474A1 (en) * | 2011-03-10 | 2012-09-13 | Sanken Electric Co., Ltd. | Power supply and control method thereof |
| CN202443412U (en) * | 2012-03-14 | 2012-09-19 | 栾淼 | Power supply control circuit of computer |
-
2013
- 2013-06-06 CN CN201310222955.7A patent/CN103293982B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006072446A (en) * | 2004-08-31 | 2006-03-16 | Systemneeds Inc | Power supply control system for electronic device by means of user authentication at entry and exit |
| CN101351007A (en) * | 2008-09-09 | 2009-01-21 | 深圳华为通信技术有限公司 | Method and apparatus for implementing one-key type computer opening/closing |
| CN201780320U (en) * | 2010-07-30 | 2011-03-30 | 深圳安博电子有限公司 | Testing system |
| US20120233474A1 (en) * | 2011-03-10 | 2012-09-13 | Sanken Electric Co., Ltd. | Power supply and control method thereof |
| CN202443412U (en) * | 2012-03-14 | 2012-09-19 | 栾淼 | Power supply control circuit of computer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784956A (en) * | 2016-03-11 | 2016-07-20 | 南京信息工程大学 | Water body layering sampling testing device |
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| CN103293982B (en) | 2016-04-20 |
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Granted publication date: 20160420 Termination date: 20170606 |