CN215817596U - Power management device for charging individual electric equipment with different voltages - Google Patents
Power management device for charging individual electric equipment with different voltages Download PDFInfo
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Abstract
The utility model provides a power supply management device for charging individual soldier electric equipment with different voltages, which comprises a single chip microcomputer master control circuit, an H-bridge buck-boost conversion circuit, a charging control and drive circuit, an input sampling circuit, a first relay, an input current sampling circuit, an output current sampling, a voltage feedback circuit, an output sampling circuit, a second relay, an energy storage battery, individual soldier charging equipment, a charging current setting resistance network, a charging voltage setting resistance setting network and multiple energy sources, wherein the single chip microcomputer master control circuit is connected with the charging control and drive circuit through the first relay; the single chip microcomputer main control circuit intelligently judges an energy flow charging mode according to the acquired input voltage and output voltage; the single chip microcomputer master control circuit sets the resistance value of the resistance network by controlling the charging current and the charging voltage, and realizes the setting of the output charging voltage and the charging current.
Description
Technical Field
The utility model relates to the technical field of power supply transformation and management, in particular to a power supply management device for charging individual soldier electric equipment with different voltages.
Background
With the technological progress and the continuous improvement of the requirement of operational skill, electronic equipment equipped by an individual soldier is more and more, such as high-tech informatization equipment of a shooting device, an aiming device, a night vision mirror, an advanced radio station, a global positioning system, communication equipment, data terminal equipment, a distance meter and the like. Due to different standards, electrical interfaces and voltage grades, the individual electronic equipment is often required to be provided with a special charger and a special cable. Therefore, when various advanced electronic devices are used in large quantities to improve the soldier operational capacity, the problems of inconvenient charging, increased soldier load and the like caused by various chargers and cables are inevitably faced, and the soldier operational efficiency is restricted from being further improved. Therefore, the power management device for charging the individual electric equipment with different voltages is designed, can be adaptively and flexibly connected with a plurality of energy sources such as a power energy storage battery, a solar battery and various portable power generation devices, realizes intelligent and efficient charging and management of the individual charging equipment with different systems, interfaces and voltages, and has very important significance for reducing weight of the individual soldier and improving operational efficiency.
In the prior art, the emphasis of power conversion and management is on high-efficiency and high-reliability conversion of single-input and multiple-output (such as CN201711083994.8) or multiple-input and single-output (such as CN201220444544.3), and few power management devices are specially developed for solving the problem that power supply is difficult for various individual charging devices in field operation due to different interfaces, standards, levels and the like. The utility model designs a power supply management device for charging individual electric equipment with different voltages, which can realize intelligent and efficient charging and management of individual charging equipment with different systems, interfaces and voltages and various energy input such as a power energy storage battery, a solar battery, various portable power generation devices and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a power management device for charging individual electric equipment with different voltages. The power management device for charging the individual soldier electric equipment with different voltages is different from a traditional power conversion device, can realize the input of various energy sources such as a power energy storage battery, a solar battery, various portable power generation devices and the like, can charge individual soldier charging equipment with different voltages, can set the charging current, automatically detects the input voltage and the output voltage, intelligently identifies, and can realize the conversion charging of voltage boosting and voltage reducing.
In order to achieve the purpose, the application provides a power management device for charging individual soldier electric equipment with different voltages, which comprises a single chip microcomputer master control circuit, an H bridge buck-boost conversion circuit, a charging control and drive circuit, an input sampling circuit, a first relay, an input current sampling circuit, an output current sampling circuit, a voltage feedback circuit, an output sampling circuit, a second relay, an energy storage battery, individual soldier charging equipment, a charging current setting resistance network, a charging voltage setting resistance setting network and multiple energy sources; the multiple energy sources are connected to the H-bridge buck-boost conversion circuit through the normally closed contact of the first relay; the input current sampling circuit is connected in series between the first relay and the H-bridge buck-boost conversion circuit to realize input current sampling; the output end of the H-bridge buck-boost conversion circuit is connected with the output current sampling circuit, the normally closed contact of the second relay and the external individual charging equipment in series, so that the charging of the individual charging equipment by multi-energy input is realized; the input sampling circuit is connected to the positive electrode and the negative electrode of the input circuit of the power management device for charging the individual soldier electric equipment with different voltages and is used for connecting the acquired input voltage signal to the single chip microcomputer main control circuit; the output sampling circuit is connected to the positive electrode and the negative electrode of the output circuit of the power management device for charging the individual soldier electric equipment with different voltages, and is used for connecting the acquired output voltage signal to the single chip microcomputer master control circuit so as to acquire the input voltage and the output voltage, and meanwhile, the single chip microcomputer master control circuit intelligently judges the energy flow charging mode according to the acquired input voltage and output voltage; the output end of the single chip microcomputer master control circuit is respectively connected to a charging current setting resistance network and a charging voltage setting resistance network, the charging current setting resistance network and the charging voltage setting resistance network are also connected to a charging control and drive circuit, and the single chip microcomputer master control circuit realizes the setting of the output charging voltage and the charging current of the power supply management device for charging the individual soldier electric equipment with different voltages by controlling the resistance values of the charging current setting resistance network and the charging voltage setting resistance network; the output end of the charging control and drive circuit is connected to the H-bridge buck-boost conversion circuit, so that the power switch tube in the H-bridge buck-boost conversion circuit is driven; meanwhile, the output ends of the input current sampling circuit, the output current sampling circuit and the output voltage feedback circuit are connected to the charging control and driving circuit, so that the feedback of the input current, the output current and the output voltage is realized, and the charging control is realized by the output current and the output voltage which are set by the singlechip main control circuit.
The multiple energy sources comprise power energy storage batteries, solar batteries and/or portable power generation devices.
The single chip microcomputer main control circuit adopts a PIC18F2423 single chip microcomputer as a main control circuit.
The charging control and drive circuit adopts a SC8701 special high-efficiency synchronous buck-boost controller, can realize automatic detection of input and output voltage, and can realize 2.7V-36V input and boost or buck output between 2V and 36V.
The H-bridge buck-boost conversion circuit comprises a first MOSFET power switch tube, a second MOSFET power switch tube, a third MOSFET power switch tube, a fourth MOSFET power switch tube and an inductor, wherein the first MOSFET power switch tube, the second MOSFET power switch tube, the third MOSFET power switch tube and the fourth MOSFET power switch tube form the H-bridge conversion circuit; the first MOSFET power switch tube and the second MOSFET power switch tube are connected in series; the third MOSFET power switch tube and the fourth MOSFET power switch tube are connected in series; one end of the inductor is connected between the first MOSFET power switch tube and the second MOSFET power switch tube; the other end of the inductor is connected between the third MOSFET power switch tube and the fourth MOSFET power switch tube.
The charging current setting resistor network comprises a first current setting resistor, a second current setting resistor, a third current setting resistor, a first control MOS (metal oxide semiconductor) tube and a second control MOS tube, wherein the first current setting resistor, the second current setting resistor and the third current setting resistor are connected in parallel; the first current setting resistor is connected with the first control MOS tube in series; the control end of the first control MOS tube is connected to a first IO port of the singlechip control circuit; the second current setting resistor is connected with the second control MOS tube in series; the control end of the second control MOS tube is connected to a second IO port of the singlechip control circuit; the third current setting resistor is grounded.
The charging voltage setting resistor network comprises a first voltage setting resistor, a second voltage setting resistor, a third control MOS (metal oxide semiconductor) tube and a fourth control MOS tube, wherein the first voltage setting resistor, the second voltage setting resistor and the third voltage setting resistor are connected in parallel; the first voltage setting resistor is grounded; the second voltage setting resistor is connected with the third control MOS tube in series; the third voltage setting resistor is connected with the fourth control MOS tube in series; the control end of the third control MOS tube is connected to a third IO port of the single chip microcomputer control circuit, and the control end of the fourth control MOS tube is connected to a fourth IO port of the single chip microcomputer control circuit.
The current sampling circuit comprises a first current sampling resistor, a second current sampling resistor and a third current sampling resistor, wherein one end of the first current sampling resistor is connected with the first MOSFET power switch tube; the other end of the first current sampling resistor is connected with a second current sampling resistor; the other end of the second current sampling resistor is connected with the charging control and drive circuit; one end of the third current sampling resistor is connected between the first current sampling resistor and the first MOSFET power switch tube; and the other end of the third current sampling resistor is connected with the charging control and drive circuit.
The output current sampling current comprises a first output current sampling resistor, a second output current sampling resistor and a third output current sampling resistor, and one end of the first output current sampling resistor is connected with a third MOSFET power switch tube; the other end of the first output current sampling resistor is connected with a third output current sampling resistor; the other end of the third output current sampling resistor is connected with the charging control and drive circuit; one end of the second output current sampling resistor is connected between the first output current sampling resistor and the third MOSFET power switch tube; and the other end of the second output current sampling resistor is connected with the charging control and drive circuit.
According to the technical scheme, the power management device for charging the individual soldier electric equipment with different voltages has the following beneficial effects:
1) the power management device can realize the input of various energy sources such as various energy source power energy storage batteries, solar batteries, various portable power generation devices and the like, and can charge individual soldier charging equipment with different voltages.
2) The power management device automatically detects the voltages of the input port and the output port, intelligently decides three energy flow charging modes, can realize high-efficiency charging from input energy to individual charging equipment, and can also realize temporary energy storage from surplus energy to an energy storage battery of the power management device; and the energy of the energy storage battery can be charged to the emergency guarantee of the individual soldier charging equipment.
3) The power management device can realize wide voltage input from 2.7V to 36V and wide voltage output charging from 2V to 36V by identifying input voltage and output voltage and automatically switching boosting and reducing conversion.
4) The power management device can automatically estimate and set the charging voltage by detecting the battery voltage of the individual soldier charging equipment, and the charging current can also be preset.
Drawings
Fig. 1 is a schematic overall structure diagram of the power management device for charging individual electric equipment with different voltages.
Fig. 2 is a schematic structural diagram of the H-bridge buck-boost conversion circuit.
Fig. 3 is a schematic structural diagram of the H-bridge buck-boost conversion circuit equivalent to a step-down circuit when the input voltage is higher than the output voltage.
Fig. 4 is a schematic structural diagram of the H-bridge buck-boost conversion circuit equivalent to a step-down circuit when the input voltage is lower than the output voltage.
Fig. 5 is a schematic diagram of the structure of the charging current setting resistor network and the charging voltage setting resistor network.
Detailed Description
The present invention will be further described with reference to the following examples, but is not limited thereto.
As shown in fig. 1, the power management device for charging individual soldier electric equipment with different voltages includes a single chip microcomputer main control circuit 101, an H-bridge buck-boost conversion circuit 102, a charging control and drive circuit 103, an input sampling circuit 104, a first relay 105 (i.e. a relay K1), an input current sampling circuit 106, an output current sampling 107, a voltage feedback circuit 108, an output sampling circuit 109, a second relay 110 (i.e. a relay K2), an energy storage battery 111, individual soldier charging equipment 112, a charging current setting resistance network 113, a charging voltage setting resistance setting network 114, and multiple energy sources 115; the positional connection relationship between them is: after various energy sources such as a power energy storage battery, a solar battery and various portable power generation devices are input, the power energy storage battery, the solar battery and various portable power generation devices are connected to the H-bridge buck-boost conversion circuit 102 through a normally closed contact of the first relay 105; the input current sampling circuit 106 is connected in series between the first relay and the H-bridge buck-boost conversion circuit to realize input current sampling; the output end of the H-bridge buck-boost conversion circuit 102 is connected in series with an output current sampling circuit 107,then the power supply is connected to the normally closed contact of the second relay, and then the power supply is output and connected with external individual soldier charging equipment 112, so that the individual soldier charging equipment is charged by multi-energy input; when the power supply is powered on, the coils of the first relay 105 and the second relay 110 are not powered on, the normally closed contact connects multiple external energy sources, and meanwhile, the output end of the power supply management device for charging the individual soldier electric equipment with different voltages is connected to the individual soldier charging equipment 112; the input sampling circuit 104 is connected to the positive electrode and the negative electrode of the input circuit, the collected input voltage signal (the voltage between V1+ and V1-in fig. 1) is connected to the main control circuit 101 of the single chip microcomputer, the output sampling circuit is connected to the positive electrode and the negative electrode of the output circuit, the collected output voltage signal (the voltage between V2+ and V2-in fig. 1) is also connected to the main control circuit 101 of the single chip microcomputer, the collection of the input voltage and the output voltage is realized, and meanwhile, the main control circuit 101 of the single chip microcomputer intelligently judges the energy flow charging mode according to the collected input voltage and output voltage: (1) when the input voltage and the output voltage are both greater than 2.5V, it is indicated that external multiple energy sources and single-soldier charging equipment are connected to the power management device for charging the single-soldier electric equipment with different voltages, the coils of the first relay 105 and the second relay 110 are not electrified, the normally closed contacts of the first relay 105 and the second relay 110 are conducted, and the multiple energy sources 115 are charged to the single-soldier charging equipment; (2) when the input voltage is greater than 2.5V and the output voltage is less than 0.5V, it is indicated that external multiple energy sources are accessed, but no individual soldier charging equipment is connected to the output end, at the moment, the coil of the first relay 105 is not electrified, the normally closed contact of the first relay accesses the external multiple energy sources, the coil of the second relay 110 is electrified, the normally open contact is attracted, the energy storage battery 111 is connected to the output end of the power management device for charging individual soldier electric equipment with different voltages, and the energy storage battery 111 is charged by the multiple energy sources 115; (3) when the input voltage is less than 0.5V and the output voltage is greater than 2.5V, it is indicated that the input end is not connected with an external energy source, the output end is connected with individual soldier charging equipment, at the moment, the coil of the first relay 105 is electrified, the energy storage battery 111 is connected to the input end of the power management device for charging the individual soldier electric equipment with different voltages, the coil of the second relay 110 is not electrified, and the normally closed contact connects the output end to the individual soldier charging equipment 112And the energy storage battery 111 is charged to the individual soldier charging equipment 112. The output end of the single chip microcomputer main control circuit 101 is respectively connected to the charging current setting resistance network 113 and the charging voltage setting resistance network 114, the charging current setting resistance network 113 and the charging voltage setting resistance network 114 are connected to the charging control and driving circuit 103, and the single chip microcomputer main control circuit 101 controls the resistance values of the charging current setting resistance network 113 and the charging voltage setting resistance network 114 to realize the setting of the output charging voltage and the charging current of the power supply management device for charging the individual soldier electric equipment with different voltages. The output end of the charging control and drive circuit 103 is connected to the H-bridge buck-boost conversion circuit 102, so that the power switch tube in the H-bridge buck-boost conversion circuit is driven; meanwhile, the output ends of the input current sampling circuit 106, the output current sampling circuit 107 and the output voltage feedback circuit 108 are connected to the charging control and drive circuit 103, so that the input current I is realizedinfOutput current IoutfAnd the output voltage feedback is realized, and the charging control is realized by the output current and the output voltage set by the single chip microcomputer main control circuit.
The single chip microcomputer main control circuit 101 adopts a PIC18F2423 single chip microcomputer of a Microchip company as a main control circuit, and has the main functions of collecting input and output port voltages, outputting charging current, then performing data processing, and controlling a first relay and a second relay according to a calculation result to realize three energy flow charging mode controls; meanwhile, the charging voltage and the charging current of the charging device are intelligently judged, and the resistance values of the charging current setting resistance network 113 and the charging voltage setting resistance network 114 are controlled, so that the setting of the charging voltage and the charging current is realized.
The charging control and drive circuit 103 adopts a SC8701 special high-efficiency synchronous buck-boost controller of SOUTHCHIIP company, can realize automatic detection of input and output voltages, and can realize boost or buck output between 2.7V and 36V input and between 2V and 36V.
The H-bridge buck-boost conversion circuit 102 comprises four MOSFET power switch tubes 201-204 (namely a first MOSFET power switch tube T1, a second MOSFET power switch tube T2, a third MOSFET power switch tube T3 and a fourth MOSFET power switch tube T4) which form the H-bridge conversion circuit, and an inductor 205 (namely an inductor L1, see FIG. 2); the first MOSFET power switch tube T1 and the second MOSFET power switch tube T2 are connected in series; the third MOSFET power switch tube T3 and the fourth MOSFET power switch tube T4 are connected in series; one end of the inductor L1 is connected between the first MOSFET power switch tube T1 and the second MOSFET power switch tube T2; the other end of the inductor L1 is connected between the third MOSFET power switch tube T3 and the fourth MOSFET power switch tube T4; when the input voltage is higher than the output voltage, the second MOSFET power switch tube T2 and the fourth MOSFET power switch tube T4 are turned off, the third MOSFET power switch tube T3 is in a direct connection mode, only the first MOSFET power switch tube T1 works in a switching state, and at the moment, the H-bridge buck-boost conversion circuit 102 is equivalent to a buck circuit (see figure 3) to realize buck output; when the input voltage is lower than the output voltage, the second MOSFET power switch tube T2 and the third MOSFET power switch tube T3 are turned off, the first MOSFET power switch tube T1 is straight, only the fourth MOSFET power switch tube T4 works in a switching state, and at this time, the H-bridge buck-boost conversion circuit 102 is equivalent to a boost circuit (see fig. 4), so that boost output is realized.
The charging current setting resistor network 113 comprises a first current setting resistor R1, a second current setting resistor R2, a third current setting resistor R3, a first control MOS transistor T5 and a second control MOS transistor T6, wherein the first current setting resistor R1, the second current setting resistor R2 and the third current setting resistor R3 are connected in parallel; the first current setting resistor R1 is connected in series with the first control MOS transistor T5; the control end of the first control MOS tube T5 is connected to a first IO port IO1 of the single chip microcomputer control circuit; the second current setting resistor R2 is connected in series with the second control MOS transistor T6; the control end of the second control MOS tube T6 is connected to a second IO port IO2 of the singlechip control circuit; the third current setting resistor R3 is grounded; when the first IO port IO1 and the second IO port IO2 are at a high level, the first current setting resistor R1 and the second current setting resistor R2 may be connected to the charging current setting resistor network, so that different charging current values may be set, the number of groups of resistors and MOS transistors may be increased, and the charging current values may be further subdivided (see fig. 5).
The charging voltage setting resistor network 114 comprises a first voltage setting resistor R4, a second voltage setting resistor R5, a third voltage setting resistor R6, a third control MOS transistor T7 and a fourth control MOS transistor T8, wherein the first voltage setting resistor R4, the second voltage setting resistor R5 and the third voltage setting resistor R6 are connected in parallel; the first voltage setting resistor R4 is grounded; the second voltage setting resistor R5 is connected in series with the third control MOS transistor T7; the third voltage setting resistor R6 is connected in series with the fourth control MOS transistor T8; the control end of the third control MOS transistor T7 is connected to a third IO port IO3 of the single chip microcomputer control circuit, the control end of the fourth control MOS transistor T8 is connected to a fourth IO port IO4 of the single chip microcomputer control circuit, when the third IO port IO3 and the fourth IO port IO4 are high level, the second voltage setting resistor R5 and the third voltage setting resistor R6 can be connected into the charging voltage setting resistor network, so that different charging voltage values can be set, the number of groups of resistors and MOS transistors is increased, and more charging voltage setting requirements can be met (see FIG. 5).
The current sampling circuit 106 includes a first current sampling resistor RSNS1A second current sampling resistor RSS11And a third current sampling resistor RSS12The first current sampling resistor RSNS1One end of the first power switch tube T1 is connected with the first MOSFET; the first current sampling resistor RSNS1And the other end of the first current sampling resistor R and a second current sampling resistor RSS11Connecting; the second current sampling resistor RSS11The other end of the voltage regulator is connected with the charging control and drive circuit 103; the third current sampling resistor RSS12Is connected to the first current sampling resistor RSNS1And the first MOSFET power switch tube T1; the third current sampling resistor RSS12The other end is connected with the charging control and drive circuit 103.
The output current sampling circuit 107 comprises a first output current sampling resistor RSNS2A second output current sampling resistor RSS21And a third output current sampling resistor RSS22The first output current sampling resistor RSNS2One end of the third MOSFET is connected with a third MOSFET power switch tube T3; the first outputCurrent sampling resistor RSNS2And the other end of the first resistor and a third output current sampling resistor RSS22Connecting; the third output current sampling resistor RSS22The other end of the voltage regulator is connected with the charging control and drive circuit 103; the second output current sampling resistor RSS21Is connected to the first output current sampling resistor RSNS2And a third MOSFET power switch transistor T3; the second output current sampling resistor RSS21And the other end thereof is connected to the charge control and drive circuit 103.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, which fall within the scope and spirit of the above description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention.
Claims (9)
1. A power management device for charging individual soldier's consumer equipment of different voltages, its characterized in that: the intelligent charging system comprises a singlechip master control circuit, an H-bridge buck-boost conversion circuit, a charging control and drive circuit, an input sampling circuit, a first relay, an input current sampling circuit, an output current sampling circuit, a voltage feedback circuit, an output sampling circuit, a second relay, an energy storage battery, single-soldier charging equipment, a charging current setting resistance network, a charging voltage setting resistance network and multiple energy sources; the multiple energy sources are connected to the H-bridge buck-boost conversion circuit through the normally closed contact of the first relay; the input current sampling circuit is connected in series between the first relay and the H-bridge buck-boost conversion circuit to realize input current sampling; the output end of the H-bridge buck-boost conversion circuit is connected with the output current sampling circuit, the normally closed contact of the second relay and the external individual charging equipment in series, so that the charging of the individual charging equipment by multi-energy input is realized; the input sampling circuit is connected to the positive electrode and the negative electrode of the input circuit of the power management device for charging the individual soldier electric equipment with different voltages and is used for connecting the acquired input voltage signal to the single chip microcomputer main control circuit; the output sampling circuit is connected to the positive electrode and the negative electrode of the output circuit of the power management device for charging the individual soldier electric equipment with different voltages, and is used for connecting the acquired output voltage signal to the single chip microcomputer master control circuit so as to acquire the input voltage and the output voltage, and meanwhile, the single chip microcomputer master control circuit intelligently judges the energy flow charging mode according to the acquired input voltage and output voltage; the output end of the single chip microcomputer master control circuit is respectively connected to a charging current setting resistance network and a charging voltage setting resistance network, the charging current setting resistance network and the charging voltage setting resistance network are also connected to a charging control and drive circuit, and the single chip microcomputer master control circuit realizes the setting of the output charging voltage and the charging current of the power supply management device for charging the individual soldier electric equipment with different voltages by controlling the resistance values of the charging current setting resistance network and the charging voltage setting resistance network; the output end of the charging control and drive circuit is connected to the H-bridge buck-boost conversion circuit, so that the power switch tube in the H-bridge buck-boost conversion circuit is driven; meanwhile, the output ends of the input current sampling circuit, the output current sampling circuit and the output voltage feedback circuit are connected to the charging control and driving circuit, so that the feedback of the input current, the output current and the output voltage is realized, and the charging control is realized by the output current and the output voltage which are set by the singlechip main control circuit.
2. The power management device of claim 1, wherein the plurality of energy sources comprise a power storage battery, a solar cell and/or a portable power generation device.
3. The power management device for charging individual soldier electric equipment with different voltages as claimed in claim 1, wherein the single chip microcomputer main control circuit adopts a PIC18F2423 single chip microcomputer as a main control circuit.
4. The power management device for charging individual soldier electric equipment with different voltages as claimed in claim 1, wherein the charging control and drive circuit adopts an SC8701 dedicated high-efficiency synchronous buck-boost controller, can realize automatic detection of input and output voltages, and can realize 2.7V to 36V input and 2V to 36V boost or buck output.
5. The power management device for charging individual soldier electric equipment with different voltages as claimed in claim 1, wherein the H-bridge buck-boost converting circuit comprises a first MOSFET power switch tube, a second MOSFET power switch tube, a third MOSFET power switch tube, a fourth MOSFET power switch tube and an inductor, wherein the first MOSFET power switch tube, the second MOSFET power switch tube, the third MOSFET power switch tube and the fourth MOSFET power switch tube form the H-bridge converting circuit; the first MOSFET power switch tube and the second MOSFET power switch tube are connected in series; the third MOSFET power switch tube and the fourth MOSFET power switch tube are connected in series; one end of the inductor is connected between the first MOSFET power switch tube and the second MOSFET power switch tube; the other end of the inductor is connected between the third MOSFET power switch tube and the fourth MOSFET power switch tube.
6. The power management device for charging individual soldier electric equipment with different voltages as claimed in claim 1, wherein the charging current setting resistor network comprises a first current setting resistor, a second current setting resistor, a third current setting resistor, a first control MOS tube and a second control MOS tube, the first current setting resistor, the second current setting resistor and the third current setting resistor are connected in parallel; the first current setting resistor is connected with the first control MOS tube in series; the control end of the first control MOS tube is connected to a first IO port of the singlechip control circuit; the second current setting resistor is connected with the second control MOS tube in series; the control end of the second control MOS tube is connected to a second IO port of the singlechip control circuit; the third current setting resistor is grounded.
7. The power management device for charging individual soldier electric equipment of different voltages as claimed in claim 1, wherein said charging voltage setting resistor network comprises a first voltage setting resistor, a second voltage setting resistor, a third control MOS transistor and a fourth control MOS transistor, said first voltage setting resistor, said second voltage setting resistor and said third voltage setting resistor are connected in parallel; the first voltage setting resistor is grounded; the second voltage setting resistor is connected with the third control MOS tube in series; the third voltage setting resistor is connected with the fourth control MOS tube in series; the control end of the third control MOS tube is connected to a third IO port of the single chip microcomputer control circuit, and the control end of the fourth control MOS tube is connected to a fourth IO port of the single chip microcomputer control circuit.
8. The power management device for charging individual soldier electric equipment with different voltages as claimed in claim 5, wherein the current sampling circuit comprises a first current sampling resistor, a second current sampling resistor and a third current sampling resistor, one end of the first current sampling resistor is connected with the first MOSFET power switch tube; the other end of the first current sampling resistor is connected with a second current sampling resistor; the other end of the second current sampling resistor is connected with the charging control and drive circuit; one end of the third current sampling resistor is connected between the first current sampling resistor and the first MOSFET power switch tube; and the other end of the third current sampling resistor is connected with the charging control and drive circuit.
9. The power management device for charging individual soldier electric equipment of different voltages of claim 5, wherein the output current sampling current comprises a first output current sampling resistor, a second output current sampling resistor and a third output current sampling resistor, and one end of the first output current sampling resistor is connected with a third MOSFET power switch tube; the other end of the first output current sampling resistor is connected with a third output current sampling resistor; the other end of the third output current sampling resistor is connected with the charging control and drive circuit; one end of the second output current sampling resistor is connected between the first output current sampling resistor and the third MOSFET power switch tube; and the other end of the second output current sampling resistor is connected with the charging control and drive circuit.
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| CN202122000517.9U CN215817596U (en) | 2021-08-24 | 2021-08-24 | Power management device for charging individual electric equipment with different voltages |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113595210A (en) * | 2021-08-24 | 2021-11-02 | 军事科学院系统工程研究院军需工程技术研究所 | Individual soldier's intelligent power management device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113595210A (en) * | 2021-08-24 | 2021-11-02 | 军事科学院系统工程研究院军需工程技术研究所 | Individual soldier's intelligent power management device |
| CN113595210B (en) * | 2021-08-24 | 2024-03-05 | 军事科学院系统工程研究院军需工程技术研究所 | Individual soldier intelligent power management device |
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