CN110943510A - Power supply controller applied to individual communication system - Google Patents
Power supply controller applied to individual communication system Download PDFInfo
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- CN110943510A CN110943510A CN201911121887.9A CN201911121887A CN110943510A CN 110943510 A CN110943510 A CN 110943510A CN 201911121887 A CN201911121887 A CN 201911121887A CN 110943510 A CN110943510 A CN 110943510A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0014—Circuits for equalisation of charge between batteries
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Abstract
The invention discloses a power supply controller applied to an individual communication system, which consists of a charging circuit, an indicating circuit, a microcomputer unit, a DC/DC converter, a switch control circuit, a double-battery management circuit and a controller outer box. Through the cooperative work of different series of component units, the charging/power supply management function of the double batteries is realized, and the built-in single chip microcomputer realizes the functions of soft control and remote control shutdown of a power switch; meanwhile, the intelligent power supply has the protection functions of overcharge, output overcurrent short circuit, input reverse connection, double-battery circuit isolation and the like, and also has the advantages of high efficiency, small volume, simplicity in operation, complete functions, flexibility in double-battery configuration, good electromagnetic compatibility of a metal shell, high reliability and the like, so that the single-soldier communication system can supplement and charge the battery through small-power supplies such as a hand generator, a portable solar power supply and the like, and can also quickly charge through large-power supplies such as a power adapter and the like, and the field use adaptability of the intelligent power supply is improved.
Description
Technical Field
The invention relates to the technical field of power controllers of individual communication systems, in particular to a power controller applied to an individual communication system.
Background
When no power grid is used for supplying power in the field, the battery of the carried electronic equipment needs to be charged, and meanwhile, the carried electronic equipment needs to be ensured to supply power uninterruptedly. Especially in the field operation environment, in order to be convenient to carry, large-scale diesel generators and other equipment are inconvenient to carry, and hand generators or portable solar power supplies and other small-weight light power supply equipment are convenient to carry. When the battery power of the current general electronic equipment is used up, the battery is charged by taking power from a power grid through a charger, but the power taking of the power grid is not suitable for an outdoor environment; or directly replacing a fully charged battery, a large number of batteries need to be carried, and the electronic equipment is powered off in the battery replacement process, so that the battery replacement method is not suitable for uninterrupted power supply equipment; the special requirements on the power supply source when the electronic equipment of the individual communication system works in the field environment are that: the power is supplied uninterruptedly, and the power supply mode is flexible, so that a double-battery configuration can be adopted. This section electrical source controller's power supply mode has the diversification, at first portable solar power supply mode, can be applicable to daytime and charge and use evening. And secondly, the hand generator can meet the power supply requirement in emergency. Finally, when equipment such as a power grid or a diesel generator provides alternating current 220V and alternating current with the frequency of 50HZ, the power supply controller can also supply power to the individual soldier communication system through the power adapter and charge the connected double batteries. The power supply controller of the individual communication system has the advantages of being high in efficiency, small in size, simple to operate, complete in function (with a battery charging function), flexible in double-battery configuration, good in metal shell electromagnetic compatibility and the like. The trouble that electronic equipment carries a large number of batteries or carries a large-scale diesel generator in the environment of field operation can be avoided, and the field adaptability of the electronic equipment is improved.
Disclosure of Invention
In view of the above technical problems in the related art, the present invention provides a power controller applied to an individual communication system, which can overcome the above disadvantages in the prior art.
In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:
a power supply controller applied to a single soldier communication system comprises a controller module and a controller outer box device, wherein the controller module comprises a charging circuit, the output of the charging circuit is connected with the input of a double-battery management circuit, the power supply output of the double-battery management circuit is connected with the input of a switch control, the output of the switch control is connected with the input of a DC/DC converter, the output of one end of the switch control is connected with a microcomputer unit, one end of the microcomputer unit is connected with the charging circuit, one end of the microcomputer unit is connected with an indicating circuit, one end of the microcomputer unit is connected with the DC/DC converter, and one end of the microcomputer unit is connected with the charging circuit; the outer box device of controller includes that the outer box of controller is equipped with output B interface, output B interface with the microcomputer unit is connected, states output B interface one side and is equipped with output A interface, output A interface with DC/DC converter output connection, output A interface one side is equipped with battery B interface, battery B interface with double cell management circuit output battery B connects, battery B interface one side is equipped with battery A interface, battery A interface with double cell management circuit output battery A connects, battery A interface is equipped with the input interface, the input interface with charging circuit input connection, input interface one side below is equipped with the pilot lamp, the pilot lamp with pilot circuit connects.
Further, the output A interface is a 5V power interface and a 12V power interface; the output interface B is in serial port communication and is communicated with an upper computer to upload working state and battery electric quantity information; the microcomputer unit and the charging circuit are used for sampling and controlling charging voltage and charging current; the microcomputer unit and the indicating circuit are used for indicating each working state of the controller and indicating battery electric quantity information; the microcomputer unit and the DC/DC converter are used for controlling the power output of the output interface A; the indicator light is a double-color (red, green) indicator light.
Further, the input of the charging circuit and pin 1 of the charging control chip N1 are used for realizing input reverse connection protection; the pin 8 of the charging control chip N1 and the microcomputer unit are used for monitoring the charging current; the electronic switch consists of a P-type field effect transistor V5, a triode V6, a diode V7 and a V8 of the charging circuit, and the diode V7 and the microcomputer unit are used for controlling charging output; the charging output short-circuit protection circuit is composed of the diodes V7 and V8, and the clamping function of V8 is used for charging output short-circuit protection.
Further, the resistor R7 is connected with a field effect transistor V28; the field effect transistor V28 is connected with a resistor R38, and the field effect transistor V28 is connected with a triode V27; the triode V27 is connected with a resistor R38, the triode V27 is connected with R39, the triode V27 is connected with R40, and the triode V27 is connected with a capacitor C24; the resistor R39 is divided into high and low inputs.
Furthermore, the microcomputer unit is used for controlling different colors of the indicator lights to realize the indication of each state of the controller.
Further, the input of the dual battery management circuit is connected with pin 1 of a chip N2(LTC4412), the input of the dual battery management circuit is connected with a fet V9 of the chip N2(LTC4412), the fet V9 is connected with a battery a interface, the fet V9 is connected with pin 1 of a chip N3(LTC4412), the fet V9 is connected with the fet V10 of the chip N3(LTC4412), and the fet V10 is connected with a power supply output VC; the input of the double battery management circuit is connected with a pin 1 of a chip N4(LTC4412), the input of the double battery management circuit is connected with a field effect tube V11 of a chip N4(LTC4412), the field effect tube V11 is connected with a battery B interface, the field effect tube V11 is connected with a pin 1 of a chip N5(LTC4412), the field effect tube V11 is connected with the field effect tube V12 of the chip N5(LTC4412), and the field effect tube V12 is connected with a power supply output VC.
Further, the input of the switch control is connected with a power supply output VC of the double-battery management circuit, the input of the switch control is connected with a field effect transistor V22, the input of the switch control is connected with a power switch K1, and the input of the switch control is connected with a resistor R29; the electronic switch circuit consists of the resistor R29, a triode V23, resistors R30 and R31 and is used for receiving a control signal SON of the microcomputer unit; one end of the field effect transistor V22 is connected with the input of the DC/DC converter, one end of the field effect transistor V22 is connected with a diode V24, and the power switch is connected with a diode V26; the power switch is connected with a resistor R32; the resistor R32 is connected with the microcomputer unit, the resistor R32 is connected with the resistor R33, and the resistor R33 is connected with the ground; the charging circuit output VB is connected with a pin 1 of a power supply chip N9(AMS1117-3.3), a diode V24 is connected with the pin 1 of the power supply chip N9(AMS1117-3.3), a diode V26 is connected with the pin 1 of the power supply chip N9(AMS1117-3.3), and a capacitor C15 is connected with the pin 1 of the power supply chip N9(AMS 1117-3.3); and the pin 3 of the power supply chip N9(AMS1117-3.3) outputs 3.3V to supply power for the microcomputer unit and the status indicator lamp.
Further, the DC/DC converter is used for outputting a +5V power supply and a +12V power supply, and the current sampled by the current sampling chip LT6107 is connected with the microcomputer unit;
the electronic switch circuit is also composed of a triode V14, a field effect transistor V13, a diode V15 and a diode V16 and is used for receiving a control signal VON2 of the microcomputer unit; the output of the field effect tube V13 is connected with the output A interface; the 5V output short-circuit protection circuit consists of the diodes V15 and V16, and the clamping function of the V16 is used for protecting the current sampled by the current sampling chip LT6107 from 5V output short-circuit and connecting the current with the microcomputer unit;
the electronic switch circuit also comprises a triode V19, a field effect transistor V18, a diode V20 and a diode V21, and is used for receiving a control signal VON2 of the microcomputer unit;
the output of the field effect transistor V18 is connected with the output interface, the 12V output short-circuit protection circuit is composed of the diode V20 and the diode V21, and the clamping function of the V21 is used for 12V output short-circuit protection.
Further, the microcomputer unit is composed of a chip 8051F330, a programming program JTAG port, and an interface chip MAX3221, the chip 8051F330 is connected to a charging voltage of the power controller, the chip 8051F330 is connected to a sampling current, the chip 8051F330 is connected to a status indicator light, the chip 8051F330 is connected to the electronic switch, and the chip MAX3221 is connected to the output B interface.
The invention has the beneficial effects that: through the cooperative work of different serial assembly units, the following advantages are achieved:
(1) the power supply controller of the individual soldier communication system is suitable for field operation, is convenient to carry, and has diversified input modes of the controller power supply, namely, the power supply can be input through the power adapter and can also be input through the portable solar power supply for power supply or input through the hand generator for power supply, so that the field adaptability of the individual soldier communication system is improved;
(2) the system can be equipped with one battery for working, and can also be equipped with two batteries for working to obtain longer standby working time; when the two batteries are equipped for working, one battery can be unplugged or connected at any time, and the system cannot be powered off;
(3) the input port of the power supply controller, the rechargeable battery and the voltage and current of the access load are monitored and controlled in real time through the microcomputer control circuit. The working state of the power supply controller is displayed through the indicator lamp, and the power supply controller has the advantages of stable, reliable and efficient work and the like;
(4) the power supply controller has the characteristics of simple operation, complete functions (having a battery charging function), flexible double-battery configuration, good electromagnetic compatibility of the metal shell and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a circuit block diagram of a power supply controller of the individual communication system;
FIG. 2 is an external view of a power supply controller of the individual communication system of the present invention;
FIG. 3 is a power supply controller charging circuit diagram of an individual communication system;
FIG. 4 is a microcomputer control circuit diagram of a power controller of the individual communication system;
FIG. 5 is a DC/DC conversion circuit diagram of a power supply controller of the individual communication system;
FIG. 6 is a circuit diagram of a power controller switch control circuit of the individual communication system;
FIG. 7 is a circuit diagram of a power controller dual battery management circuit for a single soldier communication system;
FIG. 8 is a flowchart of a power controller program for the individual communication system;
in the figure: 1. the device comprises a charging circuit, 2, an indicating circuit, 3, a microcomputer unit, 4, a DC/DC converter, 5, a switch controller, 6, a double-battery management circuit, 7, a power controller shell, 8, an output interface B, 9, an output interface A, 10, a battery interface B, 11, a battery interface A, 12, an input interface, 13, an indicating lamp, 14 and a power switch.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
As shown in fig. 1-8, a power controller applied to a single soldier communication system according to an embodiment of the present invention includes a charging circuit 1, an indicating circuit 2, a microcomputer unit 3, a DC/DC converter 4, a switch controller 5, a dual battery management circuit 6, and a controller enclosure 7, wherein an input of the charging circuit 1 is connected to an input interface 12 in the controller enclosure 7, and an output of the charging circuit 1 is connected to an input of the dual battery management circuit 6; the output battery A and the output battery B of the double battery management circuit 6 are respectively connected with a battery A interface 11 and a battery B interface 10 of the controller outer box 7, and the power supply output of the double battery management circuit 6 is also connected with the input of the switch control 5; the output of the switch control 5 is respectively connected with the input of the DC/DC converter 4 and the power switch 14 in the microcomputer unit 3 and the controller outer box 7; the output of the DC/DC converter 4 is connected with an output A interface 9 in a controller outer box 7, and the output A interface 9 is a 5V power supply interface and a 12V power supply interface; the microcomputer unit 3 is connected with an output interface B8 in a controller outer box 7, the output interface B8 is in serial port communication and is communicated with an upper computer to upload information such as working states, battery electric quantity and the like, the microcomputer unit 3 is also respectively connected with the charging circuit 1, the indicating circuit 2 and the DC/DC converter 4, and the microcomputer unit 3 is connected with the charging circuit 1 to play a role in sampling and controlling charging voltage and charging current; the microcomputer unit 3 is connected with the indicating circuit 2, indicates each working state of the controller and indicates the battery electric quantity information; the microcomputer unit 3 is connected with the DC/DC converter 4 and controls the output of 5V and 12V power supplies of an output A interface 9; the indicating circuit 2 is connected with an indicating lamp 13 in the controller outer box 7, the indicating lamp 13 is a double-color (red, green) indicating lamp, and the input of the charging circuit 1 is connected with a pin 1 of a charging control chip N1 through a diode V1 to realize input reverse connection protection; a pin 8 of the charging control chip N1 is connected with the microcomputer unit 3 through a resistor R8, so that the charging current is monitored; the P-type field effect transistor V5, the triode V6, the diode V7 and the diode V8 of the charging circuit 1 form an electronic switch, and the diode V7 is connected with the microcomputer unit 3 through a resistor R11 to realize the control of charging output; the diode V7 and the diode V8 form a charging output short-circuit protection circuit, the clamping function of V8 realizes charging output short-circuit protection, the P-type field effect transistor V5 is connected with a resistor R7, and the resistor R7 is connected with a field effect transistor V28; the field effect transistor V28 is respectively connected with the resistor R38 and the triode V27; the triode V27 is respectively connected with the resistors R38, R39, R40 and the capacitor C24. When the input of the power supply controller is a high-power supply (power is supplied by an adapter), the resistor R39 is at a high level, namely a charging current control signal connected with the resistor R39 is connected with the anode of the power supply at the power supply end through a matched cable, so that the field-effect tube V28 is conducted, the conduction of the V28 is about 33 milliohms, the resistor R7 and the V28 are connected in parallel, the total resistance is reduced, and the purpose of charging with a large current of about 4A is realized; when the power supply controller inputs a low-power supply (a hand generator or a portable solar power supply), the resistor R39 inputs a low level, namely a charging current control signal connected with the resistor R39 is connected with the negative electrode of the power supply at the power supply end through a matched cable, so that the field effect transistor V28 is disconnected, the current detection resistor only has a resistor R7, the purpose of 1A low-current charging is realized, the indicating circuit 2 is connected with an indicating lamp 13 in a controller outer box 7, and the indicating circuit 2 is connected with the microcomputer unit 3; the indication of different states of the controller is realized by controlling the indication of different colors and the like of the indicator lamp through the microcomputer unit 3, the output VB of the charging circuit 1 is connected with the input of the double battery management circuit 6, the input of the double battery management circuit 6 is connected with a pin 1 of a chip N2(LTC4412) and a field effect tube V9, the field effect tube V9 is connected with a battery A interface 11 of the controller outer box 7, the field effect tube V9 is also connected with a pin 1 of a chip N3(LTC4412) and a field effect tube V10, and the field effect tube V10 is connected with a power supply output VC; the input of the double battery management circuit 6 is connected with a pin 1 of a chip N4(LTC4412) and a field effect tube V11, the field effect tube V11 is connected with a battery B interface 10 of the controller outer box 7, the field effect tube V11 is also connected with a pin 1 of a chip N5(LTC4412) and a field effect tube V12, the field effect tube V12 is connected with a power supply output VC, the input of the switch control 5 is connected with the power supply output VC of the double battery management circuit 6, and the input of the switch control 5 is connected with the field effect tube V22, a power switch 14 in the controller outer box 7 and a resistor R29; the resistor R29, the triode V23, the resistors R30 and R31 form an electronic switch and are controlled by a control signal SON of the microcomputer unit 3; the field effect transistor V22 is connected with the input of the DC/DC conversion 4, the field effect transistor V22 is also connected with a diode V24, and a power switch 14 in the controller outer box 7 is connected with a diode V26; the power switch 14 is connected with a resistor R32; the resistor R32 is respectively connected with the microcomputer unit 3 and the resistor R33, and the resistor R33 is connected with the ground; the output VB of the charging circuit 1, a diode V24, a diode V26 and a capacitor C15 are connected with a pin 1 of a power supply chip N9(AMS 1117-3.3); and the pin 3 of the power chip N9(AMS1117-3.3) outputs 3.3V to supply power for the microcomputer unit 3 and the status indicator lamp, and the DC/DC converter 4 realizes +5V power supply and +12V power supply output. The implementation method of the +5V power supply comprises the following steps: the power management chip SIP10W-12S05A and the current sampling chip LT6107 form a circuit. The current sampled by the current sampling chip LT6107 is connected with the microcomputer unit 3, wherein, the triode V14, the field effect transistor V13, the diodes V15 and V16 form an electronic switch circuit and are controlled by a control signal VON2 of the microcomputer unit 3, the output of the field effect transistor V13 is connected with an output A interface 9 of the power controller 7, the diodes V15 and V16 form a 5V output short-circuit protection circuit, and the clamping function of the V16 realizes 5V output short-circuit protection; the implementation method of the +12V power supply comprises the following steps: the power supply management chip LT1370 and the current sampling chip LT6107 form a circuit; the current microcomputer unit 3 sampled by the current sampling chip LT6107 is connected, wherein the triode V19, the field effect tube V18, the diode V20 and the diode V21 form an electronic switch circuit and are controlled by a control signal VON2 of the microcomputer unit 3; the output of the field effect transistor V18 is connected with an output interface 9 of the power controller 7, the diode V20 and V21 form a 12V output short circuit protection circuit, the clamping function of V21 realizes 12V output short circuit protection, the microcomputer unit 3 is composed of a circuit composed of a chip 8051F330, a programming program JTAG port and an interface chip MAX3221, the chip 8051F330 is connected with the charging voltage, the sampling current, the state indicator lamp 13 and each electronic switch of the power controller, the chip MAX3221 is connected with an output B interface 8 of the power controller 7, and the output B interface 8 is used for serial port communication.
The dual-battery management circuit adopted by the invention is formed by a chip LTC4412(N2, N3, N4 and N5) and a MOS transistor FDS4675(V9, V10, V11 and V12). As shown in FIG. 7; n2, N4, V9, V10 constitute the charge equalization circuit, and the circuit theory of operation is: when the voltage of the pin 6 of the LTC4412 is lower than the voltage of the pin 1, the pin 5 is at a low level, the MOS tube is conducted, and the circuit is conducted to work; on the contrary, when the voltage of the pin 6 of the LTC4412 is higher than the voltage of the pin 1, the MOS tube is cut off, the circuit is cut off in an opposite phase, and the function is equivalent to a diode: the circuit has the functions of conducting the positive phase and stopping the reverse phase, has small conducting voltage drop (conducting voltage drop on an MOS (metal oxide semiconductor) tube) of the positive phase, and is also called as an ideal diode circuit. As shown in fig. 7, the charging voltage VB preferentially charges the battery with low electric quantity (voltage), the charging current distributed by the battery with low electric quantity is large, the electric quantities of the two batteries gradually tend to be consistent, and the charging currents obtained by the two batteries also tend to be equally divided; the N3, the N5, the V10 and the V12 form a discharge equalization circuit, a battery with high electric quantity preferentially supplies power to equipment, the discharge current of the battery is large, the electric quantities of the two batteries gradually tend to be consistent, and the discharge current also tends to be equally divided. The electric quantity of the two batteries with different electric quantities tends to be consistent after the two batteries are connected into the controller for charging or discharging for a period of time, and the automatic balancing function is realized; meanwhile, the circuit has an isolation function, and the two batteries are connected in parallel in the system to work and are isolated from each other through the circuit, so that mutual discharge between the two batteries is avoided, and the working safety of the double batteries is ensured; the battery has the hot plug function by the application of the circuit, any battery is pulled out when the double batteries of the system work, the system cannot be abnormal and keeps a normal working state, one battery is added when the single batteries of the system work, the system cannot be powered off and keeps a normal working state.
The invention also adopts a simple hardware circuit to realize the control of the charging current of two levels, so that the individual soldier communication system can charge the battery through the hand generator and the small-power supply such as the hand generator and the portable solar power supply, and can also charge the battery quickly through the large-power supply such as the power adapter. As shown in fig. 3, when the power supply controller inputs a high-power supply (the adapter supplies power), the resistor R39 is at a high level, that is, the charging current control signal connected to the resistor R39 is connected to the positive electrode of the power supply at the power supply end through a matched cable, so that the fet V28 is turned on, and the resistor R7 and the fet V28 are connected in parallel to reduce the total resistance, thereby achieving the purpose of charging with a large current of 4A. When the input of the power controller is a low-power supply (a hand generator or a portable solar power supply), the input of the resistor R39 is low level, namely, a charging current control signal connected with the resistor R39 is connected with the negative electrode of the power supply at the power supply end through a matched cable, so that the field effect transistor V28 is disconnected, and the current detection resistor is only provided with the resistor R7, thereby realizing the purpose of 1A low-current charging.
The invention adopts a microcomputer control circuit in figure 4: soft control of startup and shutdown of the controller is realized, the controller is normally pressed for about 3 seconds by a power switch in a shutdown state, and the controller is started to work; when the controller is in a power-on state, the controller is powered off by pressing a power switch for about 3 seconds; the controller monitors the charging current and the charging voltage and controls the charging output; the controller monitors the voltage and current output by 12V and 5V, and controls the 12V and 5V output; the battery electric quantity is monitored; the serial port communication between the controller and the upper computer is realized, the state information of the controller is uploaded, and the remote control shutdown can be realized through the upper computer; and realizing the indication of each state of the controller: the electric quantity is instructed, and the indicator lamp green is sufficient to the electric quantity, and the not enough indicator lamp orange of electric quantity, the not enough indicator lamp red of electric quantity is serious. The charge indication, the green light of charge indicator twinkles, is full of the indicator green. And (4) on-off indication, wherein when the power switch is pressed frequently to turn on or off, the indicator lights flash alternately in red and green. And (3) fault indication: and when the fault occurs, the red light of the indicator light flickers.
The invention finally adopts the switch control circuit shown in figure 6, the power switch K1 is pressed, and the battery voltage VC supplies power to the singlechip through the diodes V26 and N9; in addition, PON signals obtained through R32 and R33 are sent to a P1.5 port of the single chip microcomputer, after the P1.5 port monitors continuous high level for about 3 seconds, the state of the SON signal of the P1.6 port is inverted to high level through a microcomputer program, the MOS tube V22 is conducted, and the power supply controller is started. After the power supply controller is started, the switch K1 is released, the single chip microcomputer power supply is maintained to supply power through the VD via the V24, and the power supply controller is maintained in a starting state; when the power controller is in a power-on state, a power switch K1 is pressed, after the single chip microcomputer monitors continuous high level of PON signals for about 3 seconds, the SON is inverted to low level through a microcomputer program, the MOS tube V22 is cut off, the power controller is shut down, after the power controller is shut down, a switch K1 is loosened, the power of the single chip microcomputer is disconnected, and the power controller maintains the power-off state; in the power controller shutdown state, the power supply input port of the power controller is connected with a direct current power supply, the charging circuit shown in fig. 3 starts to work, and the charging voltage VB of the charging circuit supplies power to the single chip microcomputer through V25 shown in fig. 6. The single chip microcomputer starts to work, monitors the voltage and current information of the charging circuit, and indicates the charging state information through the indicating lamp. The scheme can meet the condition that the controller charges the battery under the condition of not starting up the computer.
In order to facilitate understanding of the above-described technical aspects of the present invention, the above-described technical aspects of the present invention will be described in detail below in terms of specific usage.
When the controller is used specifically, firstly, system power lines (5V and 12V) are connected to a controller output A interface 9, a communication data line is connected to a controller output B interface 8, and two matched 7.2V/10Ah batteries are respectively connected to a controller battery A interface 11 and a battery B interface 10; normally pressing the power switch 14 of the controller for about 3 seconds, starting the controller, normally pressing the power switch 14 to start, when normally pressing the power switch 14 to start, the controller indicator light 13 alternately twinkles red and green, after the controller is started, the controller indicator light 13 stops alternately twinkling red and green, and the controller indicator light 13 indicates the electric quantity: the green light is enough in electric quantity, the orange light is not enough in electric quantity, the red light is seriously not enough, and the button can be loosened to finish the starting action; after the controller is started, the controller outputs an A interface 9 to output 5V and 12V power supplies, and the controller outputs a B interface 9 to communicate with an upper computer.
When the controller is in a power-on state, a power switch 14 of the controller is pressed for about 3 seconds, the controller is powered off, when the power switch 14 is pressed for power-off, an indicator light 13 of the controller flashes alternately in red and green, and after the controller is powered off, the indicator light is turned off, and at the moment, a key can be released to finish power-off action.
When the controller is charged, the matched 12V power adapter is connected to the input interface 12 of the controller, the 12V power adapter is started, the controller starts to charge, and lithium batteries connected to the battery A interface 11 and the battery B interface 10 of the controller are charged; the controller indicator lamp 13 performs a charge indication: the charged green light flickers and is full of green light. The controller can charge the battery in the power-on state of the controller or in the power-off state of the controller, and the controller indicator light 13 gives an indication according to the charging state preferentially.
When the power supply connected to the control input interface 12 is a high-power supply (such as a matched 12V power adapter), the charging current is set to be a large current of 4A through a matched cable, and when the power supply connected to the control input interface 12 is a low-power supply (such as a hand generator and a solar power supply), the charging current is set to be a small current of 1A through a matched cable.
The technical indexes of the power supply controller in the invention are shown in the following table:
power supply controller technical index applied to individual communication system
In summary, with the above technical solution of the present invention, through the cooperative work of different series of component units, the following advantages are provided: (1) the power supply controller of the individual soldier communication system is suitable for field operation, is convenient to carry, and has diversified input modes of the controller power supply, namely, the power supply can be input through the power adapter and can also be input through the portable solar power supply for power supply or input through the hand generator for power supply, so that the field adaptability of the individual soldier communication system is improved; (2) the system can be equipped with one battery for working, and can also be equipped with two batteries for working to obtain longer standby working time; when the two batteries are equipped for working, one battery can be unplugged or connected at any time, and the system cannot be powered off; (3) the input port of the power supply controller, the rechargeable battery and the voltage and current of the access load are monitored and controlled in real time through the microcomputer control circuit. The working state of the power supply controller is displayed through the indicator lamp, and the power supply controller has the advantages of stable, reliable and efficient work and the like; (4) the power supply controller has the characteristics of simple operation, complete functions (having a battery charging function), flexible double-battery configuration, good electromagnetic compatibility of the metal shell and the like.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A power supply controller applied to an individual communication system comprises a controller module and a controller outer box device, characterized in that the controller module comprises a charging circuit (1), the output of the charging circuit (1) is connected with the input of a double-battery management circuit (6), the power supply output of the double-battery management circuit (6) is connected with the input of the switch control (5), the output of the switch control (5) is connected with the input of the DC/DC conversion (4), one end of the switch control (5) is connected with the microcomputer unit (3), one end of the microcomputer unit (3) is connected with the charging circuit (1), one end of the microcomputer unit (3) is connected with the indicating circuit (2), one end of the microcomputer unit (3) is connected with the DC/DC converter (4), and one end of the microcomputer unit (3) is connected with the charging circuit (1); the outer box device of the controller comprises an outer box (7) of the controller, an output B interface (8) is arranged at the upper end of the outer box (7) of the controller, the output B interface (8) is connected with the microcomputer unit (3), an output A interface (9) is arranged on one side of the output B interface (8), the output A interface (9) is in output connection with the DC/DC converter (4), a battery B interface (10) is arranged on one side of the output A interface (9), the battery B interface (10) is connected with an output battery B of the double battery management circuit (6), a battery A interface (11) is arranged on one side of the battery B interface (10), the battery A interface (11) is connected with an output battery A of the double battery management circuit (6), the battery A interface (11) is provided with an input interface (12), and the input interface (12) is in input connection with the charging circuit (1), an indicator light (13) is arranged below one side of the input interface (12), and the indicator light (13) is connected with the indicating circuit (2).
2. A power supply controller applied to individual soldier communication system according to claim 1, characterized in that the output a interface (9) is a 5V and 12V power supply interface; the output interface B (8) is in serial port communication and is communicated with an upper computer to upload working state and battery electric quantity information; the microcomputer unit (3) and the charging circuit (1) are used for sampling and controlling charging voltage and charging current; the microcomputer unit (3) and the indicating circuit (2) are used for indicating each working state of the controller and indicating battery power information; the microcomputer unit (3) and the DC/DC converter (4) are used for controlling the power output of the output A interface (9); the indicator light (13) is a double-color indicator light.
3. The power supply controller applied to the individual communication system as claimed in claim 1, wherein the input of the charging circuit (1) and pin 1 of a charging control chip N1 are used for realizing input reverse connection protection; the pin 8 of the charging control chip N1 and the microcomputer unit (3) are used for monitoring the charging current; the electronic switch is composed of a P-type field effect transistor V5, a triode V6, a diode V7 and a diode V8 of the charging circuit (1), and the diode V7 and the microcomputer unit (3) are used for controlling charging output; the charging output short-circuit protection circuit is composed of the diodes V7 and V8, and the clamping function of V8 is used for charging output short-circuit protection.
4. The power supply controller applied to the individual communication system as claimed in claim 1, wherein the resistor R7 is connected with a field effect transistor V28; the field effect transistor V28 is connected with a resistor R38, and the field effect transistor V28 is connected with a triode V27; the triode V27 is connected with a resistor R38, the triode V27 is connected with R39, the triode V27 is connected with R40, and the triode V27 is connected with a capacitor C24; the resistor R39 is divided into high and low inputs.
5. The power supply controller applied to the individual communication system as claimed in claim 1, wherein the microcomputer unit (3) is used for controlling different colors of the indicator lamps to realize the indication of the states of the controller.
6. The power controller applied to the individual communication system as claimed in claim 1, wherein the input of the dual battery management circuit (6) is connected with pin 1 of a chip N2, the input of the dual battery management circuit (6) is connected with a fet V9 of the chip N2, the fet V9 is connected with a battery a interface (11), the fet V9 is connected with pin 1 of a chip N3, the fet V9 is connected with the fet V10 of the chip N3, and the fet V10 is connected with a power supply output VC; the input of two battery management circuit (6) is connected with pin 1 of chip N4(LTC4412), the input of two battery management circuit (6) with chip N4's field effect transistor V11 is connected, field effect transistor V11 is connected with battery B interface (10), field effect transistor V11 is connected with pin 1 of chip N5, field effect transistor V11 with chip N5's field effect transistor V12 is connected, field effect transistor V12 is connected with power supply output VC.
7. The power supply controller applied to the individual communication system as claimed in claim 1, wherein the input of the switch control (5) is connected with the power supply output VC of the dual battery management circuit (6), the input of the switch control (5) is connected with a field effect transistor V22, the input of the switch control (5) is connected with a power switch (14), and the input of the switch control (5) is connected with a resistor R29; the electronic switch circuit consists of the resistor R29, a triode V23, resistors R30 and R31 and is used for receiving a control signal SON of the microcomputer unit (3); one end of the field effect transistor V22 is connected with the input of the DC/DC converter (4), one end of the field effect transistor V22 is connected with a diode V24, and the power switch (14) is connected with a diode V26; the power switch (14) is connected with a resistor R32; the resistor R32 is connected with the microcomputer unit (3), the resistor R32 is connected with the resistor R33, and the resistor R33 is connected with the ground; the output VB of the charging circuit (1) is connected with a pin 1 of a power chip N9, a diode V24 is connected with the pin 1 of the power chip N9, a diode V26 is connected with the pin 1 of the power chip N9, and a capacitor C15 is connected with the pin 1 of the power chip N9; and a pin 3 of the power chip N9 outputs 3.3V to supply power for the microcomputer unit (3) and the status indicator lamp.
8. The power supply controller applied to the individual communication system according to the claim 1 is characterized in that the DC/DC converter (4) is used for +5V power supply and +12V power supply output, the current sampled by the current sampling chip LT6107 is connected with the microcomputer unit (3);
the electronic switch circuit also comprises a triode V14, a field effect transistor V13, a diode V15 and a diode V16, and is used for receiving a control signal VON2 of the microcomputer unit (3); the output of the field effect tube V13 is connected with the output A interface (9); the 5V output short-circuit protection circuit consists of the diodes V15 and V16, and the clamping function of the V16 is used for protecting the current sampled by the current sampling chip LT6107 from 5V output short-circuit and connecting the current with the microcomputer unit (3);
the electronic switch circuit also comprises a triode V19, a field effect transistor V18, a diode V20 and a diode V21, and is used for receiving a control signal VON2 of the microcomputer unit (3);
the output of the field effect transistor V18 is connected with the output interface (9), a 12V output short-circuit protection circuit is composed of the diode V20 and the diode V21, and the clamping function of the V21 is used for 12V output short-circuit protection.
9. The power supply controller applied to the individual soldier communication system as claimed in claim 1, wherein the microcomputer unit (3) is composed of a chip 8051F330, a programming JTAG port and an interface chip MAX3221, the chip 8051F330 is connected with a charging voltage of the power supply controller, the chip 8051F330 is connected with a sampling current, the chip 8051F330 is connected with a state indicator lamp (13), the chip 8051F330 is connected with the electronic switch, and the chip MAX3221 is connected with the output B interface (8).
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