CN204465566U - The electric power management circuit of micro-capacitance sensor communication system - Google Patents
The electric power management circuit of micro-capacitance sensor communication system Download PDFInfo
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- CN204465566U CN204465566U CN201520148580.9U CN201520148580U CN204465566U CN 204465566 U CN204465566 U CN 204465566U CN 201520148580 U CN201520148580 U CN 201520148580U CN 204465566 U CN204465566 U CN 204465566U
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Abstract
The utility model provides a kind of electric power management circuit of micro-capacitance sensor communication system, be provided with power input interface, this power input interface is introduced 15-75V from external power source and is exchanged or direct-current input power supplying, this input power is through rectification module, first power supply control chip, Voltage stabilizing module is converted into the out-put supply of 5V, and the insulating power supply of 5V is produced by power isolation module, the insulating power supply of this 5V can also export the kernel power supply of 1V by a BUCK module, 3.3V power supply is exported by the 2nd BUCK module, the kernel power supply of this 1V is by the output of the Logic control module control 3.3V power supply that powers on.Its effect is: circuit theory is simple, can realize sharing of alternating current-direct current input power, and according to the modules of micro-capacitance sensor communication system to the different demands of power supply, the power supply arranging different brackets exports, and precisely can control the output time of a certain power supply.
Description
Technical field
The utility model relates to power circuit field, is specifically related to a kind of electric power management circuit of micro-capacitance sensor communication system.
Background technology
Communication power supply is communication system " heart ", and the electric power management circuit of communication system has very important status in a communications system.Along with the raising of communication equipment complexity, and the fusion of various communication mode, the signal processing circuit of its communication terminal becomes increasingly complex.
In micro-capacitance sensor communication system, its power supply is usually from micro-capacitance sensor power supplied locally, power supply input fluctuation range is larger, and the reliability requirement of each circuit module to power-supply device is higher in communication system, and the Power Level required is varied, and the output voltage of existing power supply circuit is often more single, variation cannot be met and the power supply supply requirement of high stability.
Utility model content
The application is by providing a kind of electric power management circuit of micro-capacitance sensor communication system, sharing of alternating current-direct current input power can be realized, according to the modules of micro-capacitance sensor communication system to the different demands of power supply, the power supply arranging different brackets exports, and precisely can control the output time of a certain power supply.
In order to achieve the above object, the application is achieved by the following technical solutions:
A kind of electric power management circuit of micro-capacitance sensor communication system, be provided with power input interface, this power input interface is introduced 15-75V from external power source and is exchanged or direct-current input power supplying, this input power is after rectification module rectification, 12V power supply is exported through the first power supply control chip, the out-put supply of this 12V is converted into the out-put supply of 5V by Voltage stabilizing module, and produce 5V insulating power supply by power isolation module, this 5V insulating power supply also exports the kernel power supply of 1V by a BUCK module, export 3.3V power supply by the 2nd BUCK module simultaneously, the kernel power supply of described 1V is also by the output of the Logic control module control 3.3V power supply that powers on.The electric power management circuit of described micro-capacitance sensor communication system can realize sharing of 15-75V alternating current-direct current input power, export the insulating power supply of 5V, the kernel power supply of 1V, the out-put supply of 3.3V, can also by the output time of the kernel power supply of 1V by the Logic control module control 3.3V power supply accurately that powers on.
Further, a described BUCK module comprises the first pulse-width modulation buck controller MAX1953 and the first power switch pipe FDS6898, described 5V insulating power supply is input to the IN pin of the first pulse-width modulation buck controller MAX1953 on the one hand, be input to 7 of the first power switch pipe FDS6898 on the other hand, 8 pins, also connect the positive pole of diode D1 simultaneously, the negative pole of diode D1 is connected to the BST pin of the first pulse-width modulation buck controller MAX1953 on the one hand, the LX pin of the first pulse-width modulation buck controller MAX1953 and 1 pin of the first power switch pipe FDS6898 is connected on the other hand by electric capacity C3, the DH pin of the first pulse-width modulation buck controller MAX1953 connects 2 pins of the first power switch pipe FDS6898, the DL pin of the first pulse-width modulation buck controller MAX1953 connects 4 pins of the first power switch pipe FDS6898, 1 pin and 5 of the first power switch pipe FDS6898, 6 pins are by the output of inductance L 1 connecting circuit, resistance R3 and resistance R4 is serially connected with successively between circuit output end and earth terminal, the common port output feedack voltage of resistance R3 and resistance R4 is to the FB pin of described first pulse-width modulation buck controller MAX1953, wherein pulse-width modulation buck controller MAX1953 controls upper metal-oxide-semiconductor in power switch pipe FDS6898 and lower metal-oxide-semiconductor respectively by the switching of DL pin and DH pin low and high level, pulse-width modulation buck controller MAX1953 utilizes the adjustment of its pulse duty factor to realize the output of rear end power supply, and the FB pin of pulse-width modulation buck controller MAX1953 carrys out the size of fed-back output voltage as feedback pin.
Described 2nd BUCK module comprises the second pulse-width modulation buck controller MAX1953 and the second power switch pipe FDS6898, and its circuit structure is identical with a described BUCK module.
Further, the described Logic control module that powers on comprises second source control chip TPS3808 and switch MOS pipe FDS6570A, wherein the kernel of 1V connects the SNESE pin of second source control chip TPS3808 by resistance R15 with power supply, the RESET pin of second source control chip TPS3808 passes through the base stage of resistance R14 connecting triode Q1, the grounded emitter of this triode Q1, the collector electrode of triode Q1 connects the grid of the first NMOS tube, and connect 5V insulating power supply by resistance R12, the source electrode of the first NMOS tube is through resistance R16 ground connection, its drain electrode connects described 5V insulating power supply through resistance R11 on the one hand, connect the G pin of described switch MOS pipe FDS6570A on the other hand, the D1 of described switch MOS pipe FDS6570A, D2, D3, D4 pin connects 3.3V input power, S1, S2, S3 pin is as the power output end of 3.3V, after the kernel power supply electrifying of 1V, the kernel of the 1V SNESE pin of this second source control chip of Energy control TPS3808, and then by the output of opening or closing control 3.3V power supply of control switch metal-oxide-semiconductor FDS6570A.
Further, described rectification module is bridge rectifier, and described first power supply control chip adopts MAX5035CUSA, and described Voltage stabilizing module adopts MIC29300-5.0BU, described power isolation module adopts direct current transducer CF0505XT-1WR2, and isolation voltage is 1500V.
Compared with prior art, the technical scheme that the application provides, the technique effect had or advantage are: circuit theory is simple, sharing of alternating current-direct current input power can be realized, according to the modules of micro-capacitance sensor communication system to the different demands of power supply, the power supply arranging different brackets exports, and precisely can control the output time of a certain power supply.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model;
Fig. 2 is the circuit theory diagrams of 5V Power convert;
Fig. 3 is the circuit theory diagrams of power isolation module in Fig. 1;
Fig. 4 is the circuit theory diagrams of 1V Power convert;
Fig. 5 is the circuit theory diagrams of 3.3V Power convert;
Fig. 6 is the circuit theory diagrams of Logic control module in Fig. 1.
Embodiment
The embodiment of the present application is by providing a kind of electric power management circuit of micro-capacitance sensor communication system, sharing of alternating current-direct current input power can be realized, according to the modules of micro-capacitance sensor communication system to the different demands of power supply, the power supply arranging different brackets exports, and precisely can control the output time of a certain power supply.
In order to better understand technique scheme, below in conjunction with Figure of description and concrete execution mode, technique scheme is described in detail.
Embodiment
A kind of electric power management circuit of micro-capacitance sensor communication system, as shown in Figure 1, be provided with power input interface, this power input interface is introduced 15-75V from external power source and is exchanged or direct-current input power supplying, this input power is after rectification module rectification, 12V power supply is exported through the first power supply control chip, the out-put supply of this 12V is converted into the out-put supply of 5V by Voltage stabilizing module, and produce 5V insulating power supply by power isolation module, this 5V insulating power supply also exports the kernel power supply of 1V by a BUCK module, export 3.3V power supply by the 2nd BUCK module simultaneously, the kernel power supply of described 1V is also by the output of the Logic control module control 3.3V power supply that powers on, the electric power management circuit of described micro-capacitance sensor communication system can realize sharing of 15-75V alternating current-direct current input power, export the insulating power supply of 5V, the kernel power supply of 1V, the out-put supply of 3.3V, and by the kernel power supply of 1V by the output time of the Logic control module control 3.3V power supply accurately that powers on.
As shown in Figure 2, be circuit theory diagrams that the 5V power supply of the present embodiment produces.Rectification module is bridge rectifier, and 12V, after bridge rectifier rectification, through the power supply that the first power supply control chip MAX5035CUSA exports 12V/1A, is converted into the out-put supply of 5V by input power by Voltage stabilizing module MIC29300-5.0BU.
As shown in Figure 3, power isolation module adopts direct current transducer CF0505XT-1WR2, and the out-put supply of 5V produces insulating power supply by direct current transducer CF0505XT-1WR2, and its isolation voltage is 1500V.
As shown in Figure 4, be circuit theory diagrams that the 1V kernel power supply of the present embodiment produces.The kernel power supply of 1V is produced after a BUCK module by the insulating power supply of 5V, a described BUCK module comprises the first pulse-width modulation buck controller MAX1953 and the first power switch pipe FDS6898, described 5V insulating power supply is input to the IN pin of the first pulse-width modulation buck controller MAX1953 on the one hand, be input to 7 of the first power switch pipe FDS6898 on the other hand, 8 pins, also connect the positive pole of diode D1 simultaneously, the negative pole of diode D1 is connected to the BST pin of the first pulse-width modulation buck controller MAX1953 on the one hand, the LX pin of the first pulse-width modulation buck controller MAX1953 and 1 pin of the first power switch pipe FDS6898 is connected on the other hand by electric capacity C3, the DH pin of the first pulse-width modulation buck controller MAX1953 connects 2 pins of the first power switch pipe FDS6898, the DL pin of the first pulse-width modulation buck controller MAX1953 connects 4 pins of the first power switch pipe FDS6898, 1 pin and 5 of the first power switch pipe FDS6898, 6 pins are by the output of inductance L 1 connecting circuit, resistance R3 and resistance R4 is serially connected with successively between circuit output end and earth terminal, the common port output feedack voltage of resistance R3 and resistance R4 is to the FB pin of described first pulse-width modulation buck controller MAX1953, wherein pulse-width modulation buck controller MAX1953 controls upper metal-oxide-semiconductor in power switch pipe FDS6898 and lower metal-oxide-semiconductor respectively by the switching of DL pin and DH pin low and high level, pulse-width modulation buck controller MAX1953 utilizes the adjustment of its pulse duty factor to realize the output of rear end power supply, and the FB pin of pulse-width modulation buck controller MAX1953 carrys out the size of fed-back output voltage as feedback pin.
As shown in Figure 5, be circuit theory diagrams that the 3.3V out-put supply of the present embodiment produces.3.3V out-put supply is produced after the 2nd BUCK module by the insulating power supply of 5V, and wherein the second pulse-width modulation BUCK controller adopts MAX1953 and the second power switch pipe to adopt FDS6898, and switching frequency is 1MHz.Described 2nd BUCK module is identical with the circuit structure of a described BUCK module.
As shown in Figure 6, in order to realize 1V kernel power supply to the control of 3.3V power supply, the described Logic control module that powers on comprises second source control chip TPS3808 and switch MOS pipe FDS6570A, wherein the kernel of 1V connects the SNESE pin of second source control chip TPS3808 by resistance R15 with power supply, the RESET pin of second source control chip TPS3808 passes through the base stage of resistance R14 connecting triode Q1, the grounded emitter of this triode Q1, the collector electrode of triode Q1 connects the grid of the first NMOS tube, and connect 5V insulating power supply by resistance R12, the source electrode of the first NMOS tube is through resistance R16 ground connection, its drain electrode connects described 5V insulating power supply through resistance R11 on the one hand, connect the G pin of described switch MOS pipe FDS6570A on the other hand, the D1 of described switch MOS pipe FDS6570A, D2, D3, D4 pin connects 3.3V input power, S1, S2, S3 pin is as the power output end of 3.3V, after the kernel power supply electrifying of 1V, the kernel of the 1V SNESE pin of this second source control chip of Energy control, the RESET of TPS3808 exports and oppositely drags down, after triode Q1 conducting, the gate of the first NMOS tube S1 opens, and then the G pin of control switch metal-oxide-semiconductor FDS6570A, thus the output time of control 3.3V power supply accurately.
In above-described embodiment of the application, by providing a kind of electric power management circuit of micro-capacitance sensor communication system, sharing of alternating current-direct current input power can be realized, according to the modules of micro-capacitance sensor communication system to the different demands of power supply, the power supply arranging different brackets exports, and precisely can control the output time of a certain power supply.
It should be noted that; above-mentioned explanation is not to restriction of the present utility model; the utility model is also not limited in above-mentioned citing; the change that those skilled in the art make in essential scope of the present utility model, modification, interpolation or replacement, also should belong to protection range of the present utility model.
Claims (4)
1. the electric power management circuit of a micro-capacitance sensor communication system, it is characterized in that, be provided with power input interface, this power input interface is introduced 15-75V from external power source and is exchanged or direct-current input power supplying, this input power is after rectification module rectification, 12V power supply is exported through the first power supply control chip, the out-put supply of this 12V is converted into the out-put supply of 5V by Voltage stabilizing module, and produce 5V insulating power supply by power isolation module, this 5V insulating power supply also exports the kernel power supply of 1V by a BUCK module, export 3.3V power supply by the 2nd BUCK module simultaneously, the kernel power supply of described 1V is also by the output of the Logic control module control 3.3V power supply that powers on.
2. the electric power management circuit of micro-capacitance sensor communication system according to claim 1, it is characterized in that, a described BUCK module comprises the first pulse-width modulation buck controller MAX1953 and the first power switch pipe FDS6898, described 5V insulating power supply is input to the IN pin of the first pulse-width modulation buck controller MAX1953 on the one hand, be input to 7 of the first power switch pipe FDS6898 on the other hand, 8 pins, also connect the positive pole of diode D1 simultaneously, the negative pole of diode D1 is connected to the BST pin of the first pulse-width modulation buck controller MAX1953 on the one hand, the LX pin of the first pulse-width modulation buck controller MAX1953 and 1 pin of the first power switch pipe FDS6898 is connected on the other hand by electric capacity C3, the DH pin of the first pulse-width modulation buck controller MAX1953 connects 2 pins of the first power switch pipe FDS6898, the DL pin of the first pulse-width modulation buck controller MAX1953 connects 4 pins of the first power switch pipe FDS6898, 1 pin and 5 of the first power switch pipe FDS6898, 6 pins are by the output of inductance L 1 connecting circuit, resistance R3 and resistance R4 is serially connected with successively between circuit output end and earth terminal, the common port output feedack voltage of resistance R3 and resistance R4 is to the FB pin of described first pulse-width modulation buck controller MAX1953,
Described 2nd BUCK module comprises the second pulse-width modulation buck controller MAX1953 and the second power switch pipe FDS6898, and its circuit structure is identical with a described BUCK module.
3. the electric power management circuit of micro-capacitance sensor communication system according to claim 1 and 2, it is characterized in that, the described Logic control module that powers on comprises second source control chip TPS3808 and switch MOS pipe FDS6570A, wherein the kernel of 1V connects the SNESE pin of second source control chip TPS3808 by resistance R15 with power supply, the RESET pin of second source control chip TPS3808 passes through the base stage of resistance R14 connecting triode Q1, the grounded emitter of this triode Q1, the collector electrode of triode Q1 connects the grid of the first NMOS tube, and connect 5V insulating power supply by resistance R12, the source electrode of the first NMOS tube is through resistance R16 ground connection, its drain electrode connects described 5V insulating power supply through resistance R11 on the one hand, connect the G pin of described switch MOS pipe FDS6570A on the other hand, the D1 of described switch MOS pipe FDS6570A, D2, D3, D4 pin connects 3.3V input power, S1, S2, S3 pin is as the power output end of 3.3V, after the kernel power supply electrifying of 1V, the kernel of the 1V SNESE pin of this second source control chip of Energy control TPS3808, and then by the output of opening or closing control 3.3V power supply of control switch metal-oxide-semiconductor FDS6570A.
4. the electric power management circuit of micro-capacitance sensor communication system according to claim 1, it is characterized in that, described rectification module is bridge rectifier, described first power supply control chip adopts MAX5035CUSA, described Voltage stabilizing module adopts MIC29300-5.0BU, and described power isolation module adopts direct current transducer CF0505XT-1WR2.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520148580.9U CN204465566U (en) | 2015-03-16 | 2015-03-16 | The electric power management circuit of micro-capacitance sensor communication system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520148580.9U CN204465566U (en) | 2015-03-16 | 2015-03-16 | The electric power management circuit of micro-capacitance sensor communication system |
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| CN204465566U true CN204465566U (en) | 2015-07-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110391758A (en) * | 2019-07-23 | 2019-10-29 | 无锡芯朋微电子股份有限公司 | Multiple-output electric power system |
| CN111049382A (en) * | 2019-12-31 | 2020-04-21 | 广州金升阳科技有限公司 | BUCK control circuit and control method thereof |
| CN114039394A (en) * | 2021-11-12 | 2022-02-11 | 深圳市鑫飞宏电子有限公司 | Power supply management system and method |
-
2015
- 2015-03-16 CN CN201520148580.9U patent/CN204465566U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110391758A (en) * | 2019-07-23 | 2019-10-29 | 无锡芯朋微电子股份有限公司 | Multiple-output electric power system |
| CN111049382A (en) * | 2019-12-31 | 2020-04-21 | 广州金升阳科技有限公司 | BUCK control circuit and control method thereof |
| CN114039394A (en) * | 2021-11-12 | 2022-02-11 | 深圳市鑫飞宏电子有限公司 | Power supply management system and method |
| CN114039394B (en) * | 2021-11-12 | 2024-01-05 | 深圳市鑫飞宏电子有限公司 | Power supply management system and method |
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