CN110943510B - Power supply controller applied to individual communication system - Google Patents
Power supply controller applied to individual communication system Download PDFInfo
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- CN110943510B CN110943510B CN201911121887.9A CN201911121887A CN110943510B CN 110943510 B CN110943510 B CN 110943510B CN 201911121887 A CN201911121887 A CN 201911121887A CN 110943510 B CN110943510 B CN 110943510B
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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
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. The charging/power supply management function of the double batteries is realized through the cooperative work of different series of component units, and the built-in singlechip realizes the soft control and remote control shutdown functions of the power switch; meanwhile, the intelligent charging system has the protection functions of overcharge, output overcurrent short circuit, reverse input connection, double-battery circuit isolation and the like, and has the advantages of high efficiency, small volume, simplicity in operation, full functions, flexible double-battery configuration, good electromagnetic compatibility of a metal shell, high reliability and the like, so that an individual communication system can supplement and charge batteries through small-power sources such as a hand generator, a portable solar power source and the like, can also rapidly charge through large-power sources such as a power adapter and the like, and improves the field use adaptability of the intelligent charging system.
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 the power is supplied in the open air without a power grid, the battery of the carried electronic equipment needs to be charged, and meanwhile, the carried electronic equipment needs to be ensured to be supplied with power uninterruptedly. Particularly in the field operation environment, in order to be convenient to carry, large-scale diesel generators and other equipment are inconvenient to carry, and small-size and light-weight power supply equipment such as a hand-operated generator or a portable solar power supply is convenient to carry. The battery of the current general electronic equipment is charged by taking electricity from a power grid through a charger after the electric quantity of the battery is exhausted, but the power grid is not suitable for a field environment; or the fully charged battery is directly replaced, so that a large number of batteries are required to be carried, and the electronic equipment is powered off in the process of replacing the batteries, so that the battery is not suitable for uninterrupted power supply equipment; aiming at the special requirements of electronic equipment of an individual communication system on a power supply when the electronic equipment works in a field environment, namely: uninterrupted power supply and flexible power supply mode are adopted, so that a double-battery configuration can be adopted. The power supply mode of the power supply controller is diversified, and the portable solar power supply mode can be suitable for daytime charging and night use. And secondly, the hand-operated generator can meet the power supply requirement in emergency. Finally, when equipment such as a power grid or a diesel generator provides 220V alternating current and 50HZ alternating current, the power supply controller can also supply power to the individual communication system through the power supply adapter and charge the connected double batteries. The power supply controller of the individual communication system has the characteristics of high efficiency, small volume, simple operation, full functions (with battery charging function), flexible double-battery configuration, good electromagnetic compatibility of a metal shell and the like. The trouble that the electronic equipment carries a large number of batteries or a large-scale diesel generator in the field operation environment 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 drawbacks of the prior art.
In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:
the power supply controller 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 controller outer box device comprises a controller outer box, an output B interface is arranged at the upper end of the controller outer box, the output B interface is connected with the microcomputer unit, an output A interface is arranged on one side of the output B interface, the output A interface is connected with the output of the DC/DC converter, a battery B interface is arranged on one side of the output A interface, the battery B interface is connected with a double battery management circuit output battery B, a battery A interface is arranged on one side of the battery B interface, the battery A interface is connected with a double battery management circuit output battery A, an input interface is arranged on the battery A interface, the input interface is connected with a charging circuit input, an indicator lamp is arranged below one side of the input interface, and the indicator lamp is connected with the indicator circuit.
Further, the output A interface is a 5V and 12V power interface; the output B interface is serial communication and is communicated with the upper computer to upload the 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 supply output of the output A interface; the indicator light is a bicolor (red and green) indicator light.
Further, the input of the charging circuit and the 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 charging current; the electronic switch consists of a P-type field effect transistor V5, a triode V6, a diode V7 and a diode V8 of the charging circuit, wherein the diode V7 and the microcomputer unit are used for controlling charging output; the charging output short-circuit protection circuit is composed of 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 the field effect transistor V28; the field effect transistor V28 is connected with the resistor R38, and the field effect transistor V28 is connected with the triode V27; the triode V27 is connected with the resistor R38, the triode V27 is connected with the resistor R39, the triode V27 is connected with the resistor R40, and the triode V27 is connected with the capacitor C24; the resistor R39 is divided into a high level and a low level.
Further, the microcomputer unit is used for controlling different colors of the indicator lamp to achieve indication of each state of the controller.
Further, the input of the dual-battery management circuit is connected with the pin 1 of the chip N2 (LTC 4412), the input of the dual-battery management circuit is connected with the field effect transistor V9 of the chip N2 (LTC 4412), the field effect transistor V9 is connected with the battery A interface, the field effect transistor V9 is connected with the pin 1 of the chip N3 (LTC 4412), the field effect transistor V9 is connected with the field effect transistor V10 of the chip N3 (LTC 4412), and the field effect transistor V10 is connected with the power supply output VC; the input of the double battery management circuit is connected with the pin 1 of the chip N4 (LTC 4412), the input of the double battery management circuit is connected with the field effect tube V11 of the chip N4 (LTC 4412), the field effect tube V11 is connected with the battery B in an interface mode, the field effect tube V11 is connected with the pin 1 of the chip N5 (LTC 4412), the field effect tube V11 is connected with the field effect tube V12 of the chip N5 (LTC 4412), and the field effect tube V12 is connected with the power supply output VC.
Further, the input of the switch control is connected with the power supply output VC of the double battery management circuit, the input of the switch control is connected with the field effect transistor V22, the input of the switch control is connected with the power switch K1, and the input of the switch control is connected with the resistor R29; the electronic switching circuit consists of the resistor R29, the triode V23, the resistors R30 and R31 and is used for receiving a control signal SON of the microcomputer unit; one end of the field effect tube V22 is connected with the input of the DC/DC converter, one end of the field effect tube V22 is connected with the diode V24, and the power switch is connected with the diode V26; the power switch is connected with the 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 (AMS 1117-3.3), a diode V24 is connected with the pin 1 of the power supply chip N9 (AMS 1117-3.3), a diode V26 is connected with the pin 1 of the power supply chip N9 (AMS 1117-3.3), and a capacitor C15 is connected with the pin 1 of the power supply chip N9 (AMS 1117-3.3); pin 3 of the power chip N9 (AMS 1117-3.3) outputs 3.3V to supply power for the microcomputer unit and the status indicator lamp.
Further, the DC/DC converter is configured to output a +5v power supply and a +12v power supply, and the current obtained by sampling by the current sampling chip LT6107 is connected to the microcomputer unit;
the electronic switching circuit is also composed of a triode V14, a field effect transistor V13, diodes V15 and 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 the 5V output short-circuit and connecting the current with the microcomputer unit;
the electronic switching circuit is also composed of a triode V19, a field effect transistor V18, diodes V20 and V21 and is used for receiving a control signal VON2 of the microcomputer unit;
the output of the field effect tube V18 is connected with the output interface, the 12V output short-circuit protection circuit is composed of diodes V20 and 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 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 status indicator lamp, the chip 8051F330 is connected with the electronic switch, and the chip MAX3221 is connected with the output B interface.
The invention has the beneficial effects that: through the collaborative work of different series of 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, has diversified input modes of the controller power supply, namely, can be used for supplying power through the input of the power supply adapter, can be used for supplying power through the input of the portable solar power supply or can be used for supplying power through the input of the hand-operated generator, and improves the field adaptability of the individual soldier communication system;
(2) The system can be provided with one battery to work, and can also be provided with two batteries to work so as to obtain longer standby working time; when the two batteries are equipped to work, one power can be pulled out or connected at any time, and the system can not be powered off;
(3) The microcomputer control circuit is used for monitoring and controlling the input port of the power supply controller, the rechargeable battery and the voltage and current of the access load in real time. The working state of the power supply controller is displayed through the indicator lamp, so that the power supply controller works stably, reliably and efficiently;
(4) The power supply controller has the characteristics of simple operation, full functions (with a battery charging function), flexible double-battery configuration, good electromagnetic compatibility of a 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 that are 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 other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a power supply controller circuit of an individual communication system;
FIG. 2 is an external view of a power supply controller of the individual soldier communication system of the present invention;
FIG. 3 is a diagram of a power controller charging circuit for an individual soldier communication system;
FIG. 4 is a microcomputer controlled circuit diagram of a power supply controller of the individual soldier communication system;
FIG. 5 is a circuit diagram of a DC/DC conversion circuit of a power supply controller of the individual soldier communication system;
FIG. 6 is a diagram of a power controller switch control circuit for an individual soldier communication system;
FIG. 7 is a diagram of a power controller dual battery management circuit for an individual soldier communication system;
FIG. 8 is a flow chart of a power controller program for an individual soldier communication system;
in the figure: 1. charging circuit, 2, instruction circuit, 3, microcomputer unit, 4, DC/DC converter, 5, switch control, 6, double battery management circuit, 7, power supply controller shell, 8, output B interface, 9, output A interface, 10, battery B interface, 11, battery A interface, 12, input interface, 13, pilot lamp, 14, switch.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the invention, fall within the scope of protection of the invention.
As shown in fig. 1-8, a power supply controller applied to an individual 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 control 5, a dual battery management circuit 6, and a controller external case 7, wherein an input of the charging circuit 1 is connected to an input interface 12 in the controller external case 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 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 microcomputer unit 3 and a power switch 14 in the controller outer box 7; the output of the DC/DC converter 4 is connected with an output A interface 9 in the controller outer box 7, and the output A interface 9 is a 5V and 12V power interface; the microcomputer unit 3 is connected with an output B interface 8 in the controller outer box 7, the output B interface 8 is in serial communication, and is communicated with an upper computer to upload information such as working state and battery power, 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 perform the functions of sampling and controlling charging voltage and charging current; the microcomputer unit 3 is connected with the indication circuit 2 and used for indicating each working state of the controller and indicating battery electric quantity information; the microcomputer unit 3 is connected with the DC/DC converter 4 and controls the 5V and 12V power supply output of the 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 and green) indicating lamp, and the input of the charging circuit 1 is connected with the pin 1 of the charging control chip N1 through a diode V1, so that the input reverse connection protection is realized; the 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 the 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 the diode V8 realizes charging output short-circuit protection, the P-type field effect transistor V5 is connected with the resistor R7, and the resistor R7 is connected with the field effect transistor V28; the field effect transistor V28 is connected with the resistor R38 and the triode V27 respectively; the triode V27 is respectively connected with resistors R38, R39, R40 and a capacitor C24. When the power supply controller inputs a high-power supply (the adapter supplies power), the resistor R39 is in a high level, namely a charging current control signal connected with the resistor R39 is connected with the positive electrode of the power supply at the power supply end through a matched cable, so that the field effect transistor V28 is conducted, the conduction of the V28 is about 33 milliohms, and the internal resistance of the resistor R7 and the internal resistance of the field effect transistor V28 are connected in parallel to reduce the total resistance, thereby realizing the purpose of charging with large current of about 4A; when the power supply controller inputs a low-power supply (a hand-operated generator or a portable solar power supply), the resistor R39 inputs a low-level charging current control signal, namely the 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 tube V28 is disconnected, the current detection resistor only has the resistor R7, the purpose of charging 1A with low current is achieved, the indicating circuit 2 is connected with the indicating lamp 13 in the controller outer box 7, and the indicating circuit 2 is connected with the microcomputer unit 3; the microcomputer unit 3 controls the indication of different colors of the indication lamp to realize the indication of each state of the controller, 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 the pin 1 of the chip N2 (LTC 4412) and the field effect tube V9, the field effect tube V9 is connected with the battery A interface 11 of the controller outer box 7, the field effect tube V9 is also connected with the pin 1 of the chip N3 (LTC 4412) and the field effect tube V10, and the field effect tube V10 is connected with the power supply output VC; the input of the double battery management circuit 6 is connected with a pin 1 of a chip N4 (LTC 4412) and a field effect tube V11, the field effect tube V11 is connected with a battery B interface 10 of a controller outer box 7, the field effect tube V11 is also connected with a pin 1 of a chip N5 (LTC 4412) 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 a field effect tube V22, a power switch 14 and a resistor R29 in the controller outer box 7; 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 tube V22 is connected with the input of the DC/DC converter 4, the field effect tube V22 is also connected with the diode V24, and the power switch 14 in the controller outer box 7 is connected with the 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 charging circuit 1 outputs VB, a diode V24, a diode V26 and a capacitor C15 which are connected with a pin 1 of a power chip N9 (AMS 1117-3.3); the pin 3 of the power chip N9 (AMS 1117-3.3) outputs 3.3V to supply power to the microcomputer unit 3 and supply power to 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 is as follows: the circuit is composed of a power management chip SIP10W-12S05A and a current sampling chip LT 6107. The current obtained by sampling the current sampling chip LT6107 is connected with the microcomputer unit 3, wherein a triode V14, a field effect tube V13, a diode V15 and a diode 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 tube V13 is connected with an output A interface 9 of the power supply controller 7, the diode V15 and the diode 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 is as follows: the circuit is composed of a power management chip LT1370 and a current sampling chip LT 6107; the current microcomputer unit 3 obtained by sampling the current sampling chip LT6107 is connected, wherein the triode V19, the field effect transistor 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 tube V18 is connected with the output interface 9 of the power supply controller 7, the diode V20 and the diode V21 form a 12V output short-circuit protection circuit, the clamping function of the diode V21 realizes the 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, sampling current, a status indicator lamp 13 and each electronic switch of the power supply controller, the chip MAX3221 is connected with the output B interface 8 of the power supply controller 7, and the output B interface 8 is used for serial communication.
The double-battery management circuit adopted by the invention is formed based on chips LTC4412 (N2, N3, N4 and N5) and MOS transistors FDS4675 (V9, V10, V11 and V12). As in fig. 7; n2, N4, V9 and V10 form a charge equalization circuit, and the working principle of the circuit is as follows: when the voltage of 6 pins of the LTC4412 is lower than the voltage of 1 pin, the voltage of 5 pins of the LTC4412 is low, the MOS tube is conducted, and the circuit is conducted; conversely, when the voltage at 6 pins of LTC4412 is higher than the voltage at 1 pin, the MOS transistor turns off and the circuit turns off in opposite phase, which is functionally equivalent to a diode: the circuit has the functions of conducting the positive phase and cutting off the negative phase, the conducting voltage drop of the positive phase is very small (the conducting voltage drop on the MOS tube), and the circuit is also called 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 quantity of the two batteries gradually tends to be consistent, and the charging currents obtained by the two batteries also tend to be equally divided; n3, N5, V10 and V12 form a discharge equalization circuit, the high-electricity battery supplies power to the equipment preferentially, the discharge current is large, the electric quantity of the two batteries gradually tends to be consistent, and the discharge current also tends to be equally divided. The electric quantity of the two batteries with different electric quantity is 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, two batteries are connected in parallel in the system to work and are isolated from each other, so that the mutual discharge between the two batteries is avoided, and the safety of double-battery work is ensured; the application of the circuit enables the battery to have a hot plug function, any battery is pulled down when the double batteries of the system work, the system cannot be abnormal, the normal working state is kept, one battery is added when the single battery of the system works, the system cannot be powered off, and the normal working state is kept.
The invention also adopts a simple hardware circuit to realize the control of the charging current of the two gears, so that the individual communication system can be charged by the small-power supply such as the hand-operated generator and the portable solar power supply, and can be charged by 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, a charging current control signal connected with the resistor R39 is connected with 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 total internal resistance parallel connection resistance of the resistor R7 and the fet V28 is reduced, thereby achieving the purpose of charging the high current 4A. When the power supply controller inputs a low-power supply (a hand-operated generator or a portable solar power supply), the resistor R39 inputs a low-level charging current control signal which is connected with the resistor R39, and the charging current control signal is connected with the negative electrode of the power supply at the power supply end through a matched cable, so that the field effect tube V28 is disconnected, and the current detection resistor only has the resistor R7, thereby realizing the purpose of charging 1A with low current.
The invention adopts the microcomputer control circuit in fig. 4: the soft control of the switching on and switching off of the controller is realized, the controller is always pressed on the power switch for about 3 seconds in the off state, and the controller is started to work; in the starting-up state of the controller, the power switch is pressed for about 3 seconds, and the controller is shut down; the controller monitors charging current and charging voltage and controls charging output; the voltage and current output by the 12V and 5V are monitored by the controller, and the 12V and 5V output is controlled; monitoring the electric quantity of the battery is realized; 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; realizing the indication of each state of the controller: the electric quantity indication lamp is green, the electric quantity insufficient indication lamp is orange, and the electric quantity seriously insufficient indication lamp is red. And the charging indication lamp blinks green, and the charging indication lamp is full of green. And when the power switch is normally pressed to be turned on or turned off, the indication lamp alternately flashes red and green. Fault indication: and the red light of the indicator lamp flashes when in failure.
The invention finally adopts the switch control circuit of FIG. 6, the power switch K1 is pressed down, 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 singlechip, after the P1.5 port monitors continuous high level for about 3 seconds, the SON signal state of the P1.6 port is inverted to high level through a microcomputer program, the MOS tube V22 is turned on, and the power supply controller is turned on. After the power controller is started, the switch K1 is loosened, the power supply of the singlechip is maintained by VD through V24, and the power controller maintains the starting state; when the power supply controller is in a starting state, the power supply switch K1 is pressed down, after the singlechip monitors the continuous high level of the PON signal for about 3 seconds, the SON is reversed to be low level through a microcomputer program, the MOS tube V22 is cut off, the power supply controller is powered off, the switch K1 is loosened, the singlechip is powered off, and the power supply controller maintains the power-off state; in the power controller off state, the power input port of the power controller is connected with the direct current power supply, the charging circuit shown in fig. 3 starts to work, and the charging voltage VB supplies power to the singlechip through V25 shown in fig. 6. The singlechip starts to work, monitors the voltage and current information of the charging circuit, and indicates the charging state information through the indicator lamp. The scheme can meet the requirement that the controller charges the battery under the condition of not starting up.
In order to facilitate understanding of the above technical solutions of the present invention, the following describes the above technical solutions of the present invention in detail by a specific usage manner.
When the battery pack is specifically used, firstly, a system power line (5V, 12V) is 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; the controller is started after the power switch 14 of the controller is pressed for about 3 seconds, when the power switch 14 is pressed normally, the controller indicator lamp 13 flashes in red and green alternately, after the controller is started, the controller indicator lamp 13 stops flashing in red and green alternately, and the controller indicator lamp 13 performs electric quantity indication: green light with sufficient electric quantity, orange light with insufficient electric quantity and red light with serious shortage can be used for loosening a key to finish the starting action; after the controller is started, the controller output A interface 9 outputs 5V and 12V power supplies, and the controller output B interface 9 is communicated with an upper computer.
When the controller is in a power-on state, the power switch 14 of the controller is normally pressed for about 3 seconds, the controller is turned off, when the power switch 14 is normally pressed to be turned off, the indicator lamp 13 of the controller alternately flashes red and green, and after the controller is turned off, the indicator lamp is turned off, and at the moment, a key can be released to finish the 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, and the controller starts to charge the lithium battery connected to the battery A interface 11 and the battery B interface 10 of the controller; the controller indicator lamp 13 performs charge indication: the charging green light blinks and is full of green light. The controller can charge the battery in the on state of the controller or in the off state, and the controller indicator lamp 13 indicates the state of charge preferentially.
When the control input interface 12 is connected with a high-power supply (such as a matched 12V power supply adapter), the charging current is set to be a high current of 4A through a matched cable, and when the control input interface 12 is connected with a low-power supply (such as a hand-operated generator and a solar power supply), the charging current is set to be a low 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 soldier communication system
In summary, by means of the above technical solution of the present invention, through the cooperative work of the 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, has diversified input modes of the controller power supply, namely, can be used for supplying power through the input of the power supply adapter, can be used for supplying power through the input of the portable solar power supply or can be used for supplying power through the input of the hand-operated generator, and improves the field adaptability of the individual soldier communication system; (2) The system can be provided with one battery to work, and can also be provided with two batteries to work so as to obtain longer standby working time; when the two batteries are equipped to work, one power can be pulled out or connected at any time, and the system can not be powered off; (3) The microcomputer control circuit is used for monitoring and controlling the input port of the power supply controller, the rechargeable battery and the voltage and current of the access load in real time. The working state of the power supply controller is displayed through the indicator lamp, so that the power supply controller works stably, reliably and efficiently; (4) The power supply controller has the characteristics of simple operation, full functions (with a battery charging function), flexible double-battery configuration, good electromagnetic compatibility of a metal shell and the like.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (7)
1. The power supply controller applied to the individual communication system comprises a controller module and a controller outer box device, and is 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 a switch control (5), the output of the switch control (5) is connected with the input of a DC/DC converter (4), one end of the switch control (5) is connected with a 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 an indicating circuit (2), and one end of the microcomputer unit (3) is connected with the DC/DC converter (4); the controller outer box device comprises a controller outer box (7), an output B interface (8) is arranged at the upper end of the controller outer box (7), 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 connected with the output of 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 a battery B output by 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 a battery A output by the double battery management circuit (6), an input interface (12) is arranged on one side of the battery A interface (11), the input interface (12) is connected with the input of the charging circuit (1), and an indicator lamp (13) is arranged below one side of the input interface (12), and the indicator lamp (13) is connected with the indicator circuit (2).
The input of the double battery management circuit (6) is connected with a pin 1 of a chip N2, the input of the double battery management circuit (6) is connected with a field effect tube V9 of the chip N2, the field effect tube V9 is connected with a battery A interface (11), the field effect tube V9 is connected with a pin 1 of a chip N3, the field effect tube V9 is connected with a field effect tube V10 of the chip N3, 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, wherein the type of the chip N4 is LTC4412, the input of the double-battery management circuit (6) is connected with a field effect tube V11 of the chip N4, the field effect tube V11 is connected with a battery B interface (10), the field effect tube V11 is connected with a pin 1 of a chip N5, the field effect tube V11 is connected with a field effect tube V12 of the chip N5, and 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), the input of the switch control (5) is connected with the field effect transistor V22, the input of the switch control (5) is connected with the power switch (14), and the input of the switch control (5) is connected with the resistor R29; the electronic switching circuit consists of the resistor R29, the triode V23, the resistors R30 and R31 and is used for receiving a control signal SON of the microcomputer unit (3); one end of the field effect tube V22 is connected with the input of the DC/DC converter (4), one end of the field effect tube V22 is connected with the diode V24, and the power switch (14) is connected with the diode V26; the power switch (14) is connected with the 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 charging circuit (1) output VB is connected with the pin 1 of the power chip N9, the diode V24 is connected with the pin 1 of the power chip N9, the diode V26 is connected with the pin 1 of the power chip N9, and the capacitor C15 is connected with the pin 1 of the power chip N9; and the pin 3 of the power chip N9 outputs 3.3V to supply power to the microcomputer unit (3) and supply power to the status indicator lamp.
2. A power supply controller for an individual communication system according to claim 1, characterized in that the output a interface (9) is a 5V and 12V power supply interface; the output B interface (8) is in serial communication and is communicated with the upper computer to upload the 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 electric quantity information; the microcomputer unit (3) and the DC/DC converter (4) are used for controlling the power supply output of the output A interface (9); the indicator lamp (13) is a bicolor indicator lamp.
3. The power supply controller applied to the individual communication system according to claim 1, wherein the input of the charging circuit (1) and the 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 (3) are used for monitoring charging current; the electronic switch consists of a P-type field effect transistor V5, a triode V6 and diodes V7 and V8 of the charging circuit (1), wherein the diode V7 and the microcomputer unit (3) are used for controlling charging output; the charging output short-circuit protection circuit is composed of diodes V7 and V8, and the clamping function of V8 is used for charging output short-circuit protection.
4. A power supply controller for an individual communication system according to claim 3, wherein the P-type field effect transistor V5 is connected to a resistor R7, and the resistor R7 is connected to a field effect transistor V28; the field effect transistor V28 is connected with the resistor R38, and the field effect transistor V28 is connected with the triode V27; the triode V27 is connected with the resistor R38, the triode V27 is connected with the resistor R39, the triode V27 is connected with the resistor R40, and the triode V27 is connected with the capacitor C24; the resistor R39 is divided into a high level and a low level.
5. A power supply controller for an individual communication system according to claim 1, characterized in that the microcomputer unit (3) is arranged to control different colours of the indicator lights for indicating the respective states of the controller.
6. The power supply controller applied to the individual communication system according to claim 1, wherein the DC/DC converter (4) is used for +5v power supply and +12v power supply output, and the current obtained by sampling by the current sampling chip LT6107 is connected to the microcomputer unit (3);
the electronic switching circuit is also composed of a triode V14, a field effect transistor V13, diodes V15 and 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 the 5V output short-circuit and connecting the current with the microcomputer unit (3);
the electronic switching circuit is also composed of a triode V19, a field effect transistor V18, diodes V20 and V21 and is used for receiving a control signal VON2 of the microcomputer unit (3);
the output of the field effect tube V18 is connected with the output A interface (9), the 12V output short-circuit protection circuit is composed of diodes V20 and V21, and the clamping function of the V21 is used for 12V output short-circuit protection.
7. A power supply controller applied to an individual communication system according to claim 3, characterized in that the microcomputer unit (3) is composed of a chip 8051F330, a programming program 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 status 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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