Power supply system for supplying power to multi-module system

Abstract

The utility model provides a power supply system for supplying power to a multi-module system, which comprises a conversion circuit for converting high-voltage alternating current into first direct current, the conversion circuit is connected with an interface module through a voltage regulating module, and the interface module is connected with a peripheral terminal through a control module. The voltage regulating module is used for converting a first direct current into a second direct current and is electrically connected with the peripheral terminal through the interface module, the voltage regulating module comprises a plurality of voltage regulating circuits for outputting different powers so as to supply power to different modules in the peripheral terminal, and the control module is used for controlling whether the voltage regulating module is communicated with the different modules in the peripheral terminal or not; the conversion circuit is connected with the voltage regulation module through the storage battery, and the storage battery and the voltage regulation module are in data communication with the control module through the interface module so that the control module can monitor and control the storage battery and the voltage regulation module to act. According to the utility model, power can be continuously, stably and independently supplied to a multi-device system.

Description

Technical Field

[0001] The utility model relates to the technical field of voltage regulation power supply, in particular to a power supply system for supplying power to a multi-module system. Background Art

[0002] Mobile devices such as cars, drones, and ships require positioning and attitude measurement systems to determine their current location and attitude. These systems typically include data acquisition devices such as distance sensors, positioning radars, and satellite receivers, installed in various locations within the vehicle. Due to the scattered installation locations of these acquisition devices and the varying rated voltages of these devices, unified wiring is impossible. Therefore, a distributed power supply system is required. Utility Model Content

[0003] In view of this, the problem to be solved by the present invention is to provide a power supply system for supplying power to a multi-module system, which can continuously and stably supply power to dispersed devices individually.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A power supply system for supplying power to a multi-module system, comprising a conversion circuit for converting high-voltage alternating current into a first direct current; the conversion circuit being connected to an interface module via a voltage regulating module; the interface module being connected to a peripheral terminal via a control module; the voltage regulating module being configured to convert the first direct current into a second direct current and being electrically connected to the peripheral terminal via the interface module; the voltage regulating module including a plurality of voltage regulating circuits with different power outputs to supply power to different modules within the peripheral terminal; and the control module being configured to control whether the voltage regulating module is connected to the different modules within the peripheral terminal;

[0006] The conversion circuit is connected to the voltage regulating module via the battery. Both the battery and the voltage regulating module communicate with the control module via the interface module so that the control module can monitor and control the actions of the battery and the voltage regulating module.

[0007] Furthermore, the conversion circuit includes a filter inductor LF1, wherein terminals 1 and 4 of the filter inductor LF1 are connected to the ACL terminal and the ACN terminal, respectively, and the ACL terminal and the ACN terminal are used to output AC power; terminals 2 and 3 of the filter inductor LF1 are connected to the 3rd terminal and the 2nd terminal of the diode converter BR1, respectively; and terminal 1 of the diode converter BR1 is connected to the +VI pin of the voltage regulator chip U1;

[0008] The +VO pin of the voltage regulator chip U1 is connected to the VBAT+ terminal through a diode D1, and the ground is connected to the VBAT- terminal. The VBAT+ terminal and the VBAT- terminal are respectively the positive and negative poles of the first direct current.

[0009] Furthermore, the voltage regulating circuit includes a voltage regulating chip 1U1, the +VIN pin and -VIN pin of the voltage regulating chip 1U1 are respectively connected to the VBAT+ terminal and the VBAT- terminal, and the VO pin and GND pin of the voltage regulating chip 1U1 are respectively connected to the VA terminal and the GND-A terminal through the filter inductor LF1 for filtering to output a second direct current with a set pressure and power.

[0010] Furthermore, a switching circuit is connected in series between the voltage regulating circuit and the interface module. The switching circuit includes a MOS transistor 1Q1 and an optocoupler 1U3. The gate of the MOS transistor 1Q1 and the four terminals of the optocoupler 1U3 are both connected to the +VIN pin of the voltage regulating chip 1U1. The drain of the MOS transistor 1Q1 and the three terminals of the optocoupler 1U3 are both connected to the -VIN pin of the voltage regulating chip 1U1. One terminal of the optocoupler 1U3 is connected to the interface module. The source of the MOS transistor 1Q1 is connected to the CTL pin of the voltage regulating chip 1U1 to control the operation of the voltage regulating circuit.

[0011] Furthermore, the VA terminal is connected to the interface module via an optical coupler 1U4 to transmit the start-up status of the voltage regulating circuit to the control module.

[0012] Furthermore, a charging circuit is connected in series between the conversion circuit and the battery. The charging circuit includes a charging chip U2. The DR S1 pin of the charging chip U2 is connected to the base of the transistor Q1. The emitter of the transistor Q1 is connected to the VBAT+ terminal. A diode D2 is connected in series between the collector of the transistor Q1 and the V_charge+ terminal. The ground is connected to the V_charge- terminal for isolated charging of the battery.

[0013] Furthermore, current sampling circuits with identical circuit structures are connected in series between the interface module and the input and output ends of the battery. The current sampling circuit at the input end of the battery includes a sampling chip ZU2. The IP+ pin of the sampling chip ZU2 is connected to the V_charge+ end, the IP- pin of the sampling chip ZU2 outputs a first direct current, and the VO pin of the sampling chip ZU2 is connected to the interface module to transmit the current value to the control module.

[0014] Furthermore, a voltage sampling circuit with exactly the same circuit structure is connected in series between the interface module and the input and output ends of the battery. The voltage sampling circuit at the input end of the battery includes a sampling chip U3, the SI+ pin of the sampling chip U3 is connected to the V_charge+ end, and the SO+ pin of the sampling chip U3 is connected to the interface module to transmit the voltage value to the control module.

[0015] Furthermore, a current sampling circuit is connected in series between the output end of the voltage regulating circuit and the interface module to monitor the output current of the voltage regulating circuit.

[0016] The advantages and positive effects of the utility model are:

[0017] (1) By installing a battery in the power supply system, when the conversion circuit cannot supply power normally, the battery can ensure that the power supply system continues to supply power, thereby improving the performance of the power supply system.

[0018] (2) By setting up a voltage regulating module, the voltage regulating module includes multiple voltage regulating circuits that output different powers and voltages to provide stable power to decentralized devices.

[0019] (3) The control module is connected to the interface module, and the interface module is connected to the battery and the voltage regulation circuit through the switch circuit, the voltage regulator circuit, and the current sampling circuit to monitor the power supply status of the power supply system and the remaining power of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 This is an overall system diagram of a power supply system for supplying power to a multi-module system according to the present invention;

[0022] Figure 2 This is a conversion circuit diagram of a power supply system for supplying power to a multi-module system of the utility model;

[0023] Figure 3 This is a charging circuit diagram of a power supply system for supplying power to a multi-module system in the utility model;

[0024] Figure 4 This is a current sampling circuit diagram of a power supply system for supplying power to a multi-module system of the utility model;

[0025] Figure 5 This is a voltage sampling circuit diagram of a power supply system for supplying power to a multi-module system of the utility model;

[0026] Figure 6 This is a voltage regulating circuit diagram of a power supply system for supplying power to a multi-module system of the utility model;

[0027] Figure 7 This is a switch circuit diagram of a power supply system for supplying power to a multi-module system according to the present invention;

[0028] Figure 8 This is a connection circuit diagram of an optocoupler 1U4 in a power supply system for supplying power to a multi-module system according to the utility model. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] The utility model provides a power supply system for a multi-module system, such as Figure 1 As shown, it includes a conversion circuit that converts 220V AC power into 30V DC power, and the DC power output by the conversion circuit is defined as a first DC power. The conversion circuit is electrically connected to the interface module through a voltage regulating module, and the interface module is connected to the peripheral terminal through a control module. The voltage regulating module includes a plurality of voltage regulating circuits for converting 30V DC power into 24V DC power. The peripheral terminal includes a plurality of dispersed functional modules, and the operating power of different functional modules is different. The voltage regulating module includes a plurality of voltage regulating circuits, and the output power of different voltage regulating circuits corresponds to the power usage of the corresponding functional module. The voltage regulating module is electrically connected to the peripheral terminal through the interface module to supply different functional modules of the peripheral terminal separately. The control module is used to control whether the voltage regulating module is connected to the peripheral terminal.

[0032] The conversion circuit is electrically connected to the voltage regulation module via a battery, storing electrical energy in the battery. In the event of a power outage, the battery is used to power the peripheral terminal. The conversion circuit is connected to the battery via a charging circuit to charge the battery. The interface module is connected to the battery's input and output terminals via a current sampling circuit and a voltage sampling circuit to monitor the battery's charge and discharge voltages, allowing the control module to calculate the remaining battery charge.

[0033] One embodiment of the present application is: when the power is supplied by a battery, the control module calculates the remaining power in the battery based on the battery charging and discharging current and voltage, and predicts the battery's available power supply time.

[0034] like Figure 2As shown, the conversion circuit includes a filter inductor LF1, and terminals 1 and 4 of the filter inductor LF1 are connected to the ACL terminal and the ACN terminal respectively. The ACL terminal and the ACN terminal are used to output 220V AC power. A filter capacitor C1 and a transient pulse suppressor VR1 are connected in series between terminals 1 and 4 of the filter inductor LF1.

[0035] Terminals 2 and 3 of filter inductor LF1 are connected to terminals 3 and 2 of diode converter BR1, respectively. Resistors R1, R2, and R3 are connected in series between terminals 3 and 2 of diode converter BR1 to ensure a stable voltage difference between terminals 3 and 2. Terminal 1 of diode converter BR1 is connected to the +VI pin of voltage regulator chip U1. Diode converter BR1 converts AC power into DC power, which is then fed into voltage regulator chip U1 for step-down processing. The VBAT+ terminal is connected from the +VO pin to output 30V DC power.

[0036] To improve the stability and interference resistance of the converter circuit's output power, filter capacitors C5, C6, and C7 are connected in series between the +VO pin of voltage regulator chip U1 and ground, respectively. Diode D1 is connected in series between the +VO pin of voltage regulator chip U1 and the VBAT+ terminal to isolate the power and reduce the possibility of current reverse flow. Ground leads to the VBAT- terminal, with the VBAT+ and VBAT- terminals serving as the positive and negative poles of the first DC power supply, respectively.

[0037] like Figure 3 As shown, the charging circuit includes a charging chip U2, the DR S1 pin of the charging chip U2 is connected to the base of the transistor Q1, the emitter of the transistor Q1 is connected to the VBAT+ terminal, the VBAT+ terminal outputs a 30V DC power supply, a diode D2 is connected in series between the collector of the transistor Q1 and the V_charge+ terminal, the V_charge+ terminal is electrically connected to the positive electrode of the battery charging terminal, the ground is led to the V_charge- terminal, and the V_charge- terminal is electrically connected to the negative electrode of the battery charging terminal to charge the battery in isolation.

[0038] Taking into account the voltage drops across diodes D1 and Q1, the battery's charging voltage is 24V. During charging, charging chip U2 controls transistor Q1 via the DR S1 pin, turning it on. A 30V current flows through transistor Q1 and diode D2 before entering the battery, completing the charge. Charging stops when transistor Q1 turns off.

[0039] like Figure 4 As shown, current sampling circuits with exactly the same circuit structure are connected in series between the interface module and the input and output ends of the battery. The current sampling circuits can continuously collect the current values of the input and output batteries, and then transmit them to the control module through the interface module.

[0040] Taking the current sampling circuit at the input end of the battery as an example, the current sampling circuit includes a sampling chip ZU2. The IP+ pin of the sampling chip ZU2 is connected to the V_charge+ terminal, and the IP- pin of the sampling chip ZU2 outputs a first 30V DC power. The IP- pin of the sampling chip ZU2 is electrically connected to the positive electrode of the battery charging terminal, which does not affect the normal charging of the battery. At the same time, the VO pin of the sampling chip ZU2 outputs a current value signal and is connected to the control module through the interface module to transmit the current value to the control module.

[0041] like Figure 5 As shown, a voltage sampling circuit with exactly the same circuit structure is connected in series between the interface module and the input and output ends of the battery. The voltage sampling circuit can continuously collect the voltage values of the input and output batteries, and then transmit them to the control module through the interface module. The control module determines the remaining energy in the battery based on the received current and voltage values.

[0042] Taking the voltage sampling circuit at the input end of the battery as an example, the voltage sampling circuit includes a sampling chip U3. The SI+ pin and SI- pin of the sampling chip U3 are connected to the V_charge+ terminal and V_charge- terminal respectively. The SO+ pin and SO- pin of the sampling chip U3 are connected to the interface module to transmit the voltage value to the control module through the interface module.

[0043] like Figure 6 As shown, the voltage regulation circuit includes a voltage regulator chip 1U1. Its +VIN and -VIN pins are connected to the VBAT+ and VBAT- terminals, respectively, to receive the 30V DC output from the conversion circuit or the 24V DC output from the battery. To improve the stability of the input power, capacitors 1C1 and 1C2 are connected in series between the +VIN and -VIN pins of the voltage regulator chip 1U1, respectively.

[0044] The VO and GND pins of the voltage regulator chip 1U1 are connected to terminals 1 and 4 of the filter inductor LF1, respectively. Terminals 2 and 3 of the filter inductor LF1 are connected to the VA terminal and GND-A terminal, respectively, to output a second DC power supply with a set pressure and power. To improve output voltage stability, capacitors 1C3 and 1C4 are connected in series between the VO and GND pins of the voltage regulator chip 1U1, respectively. Capacitor 1C5 is connected in series between terminals 2 and 3 of the filter inductor LF1.

[0045] An embodiment of the present application is: the second DC power is 24V12W DC power, the VA terminal outputs 24V power, and the GND-A terminal outputs 0V power.

[0046] like Figure 7As shown, to facilitate the control module to control the operation of the voltage regulating circuit through the interface module, a switch circuit is connected in series between the voltage regulating circuit and the interface module. The switch circuit includes a MOS transistor 1Q1 and an optocoupler 1U3. The gate of the MOS transistor 1Q1 and the four terminals of the optocoupler 1U3 are both connected to the +VIN pin of the voltage regulating chip 1U1. The drain of the MOS transistor 1Q1 and the three terminals of the optocoupler 1U3 are both connected to the -VIN pin of the voltage regulating chip 1U1. A resistor 1R7 is connected in series between the drain and gate of the MOS transistor 1Q1. The one terminal of the optocoupler 1U3 is connected to the interface module. The source of the MOS transistor 1Q1 is connected to the CTL pin of the voltage regulating chip 1U1.

[0047] When the voltage regulation circuit is turned on, the control module increases the voltage at terminal 1 of the optocoupler 1U3 through the interface module, turning on the optocoupler 1U3 and the MOS tube 1Q1, changing the voltage at the CTL pin of the voltage regulation chip 1U, and causing the voltage regulation chip 1U to operate.

[0048] like Figure 8 As shown, the voltage regulation circuit also includes an optocoupler 1U4. Terminal 1 of optocoupler 1U4 is connected to the VO pin (or VA terminal) of the voltage regulation chip 1U. Terminal 2 of optocoupler 1U4 is grounded. Terminal 3 of optocoupler 1U4 is connected to the interface module. Terminal 4 of optocoupler 1U4 is connected to the pull-up 5.5V power supply. When the voltage regulation circuit operates normally, terminal 3 of optocoupler 1U4 generates an electrical signal, which is transmitted to the control module via the interface module, allowing the control module to monitor the operation of the voltage regulation circuit.

[0049] like Figure 6 As shown, to facilitate monitoring of the output current value of the voltage regulator circuit, a current sampling circuit (identical to the current sampling circuit structure connected to the battery input and output terminals) is connected in series between the two terminals of the filter inductor LF1 and the interface module. The output terminal of the current sampling circuit is connected to the interface module to transmit the current value data output by the voltage regulator circuit to the control module. In one embodiment of the present application, the interface module is a 20-pin double-row connector.

[0050] The above embodiments of the present invention are described in detail. However, the above contents are only preferred embodiments of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of this patent.

Claims

1. A power supply system for supplying power to a multi-module system, characterized in that: The device includes a conversion circuit for converting high-voltage alternating current into a first direct current, the conversion circuit being connected to an interface module via a voltage regulating module, the interface module being connected to an external terminal via a control module, the voltage regulating module being used to convert the first direct current into a second direct current and being electrically connected to the external terminal via the interface module, the voltage regulating module including a plurality of voltage regulating circuits with different power outputs to supply power to different modules within the external terminal, and the control module being used to control whether the voltage regulating module is connected to different modules within the external terminal; The conversion circuit is connected to the voltage regulating module via the battery. Both the battery and the voltage regulating module communicate with the control module via the interface module so that the control module can monitor and control the actions of the battery and the voltage regulating module.

2. A power supply system for supplying power to a multi-module system according to claim 1, characterized in that: The conversion circuit includes a filter inductor LF1, wherein the 1st and 4th terminals of the filter inductor LF1 are respectively connected to the ACL terminal and the ACN terminal, and the ACL terminal and the ACN terminal are used to output alternating current. The 2nd and 3rd terminals of the filter inductor LF1 are respectively connected to the 3rd and 2nd terminals of the diode converter BR1, and the 1st terminal of the diode converter BR1 is connected to the +VI pin of the voltage regulator chip U1. The +VO pin of the voltage regulator chip U1 is connected to the VBAT+ terminal through a diode D1, and the ground is connected to the VBAT- terminal. The VBAT+ terminal and the VBAT- terminal are respectively the positive and negative poles of the first direct current.

3. A power supply system for supplying power to a multi-module system according to claim 2, characterized in that: The voltage regulating circuit includes a voltage regulating chip 1U1, the +VIN pin and -VIN pin of the voltage regulating chip 1U1 are respectively connected to the VBAT+ terminal and the VBAT- terminal, and the VO pin and GND pin of the voltage regulating chip 1U1 are respectively connected to the VA terminal and the GND-A terminal through the filter inductor LF1 for filtering to output a second direct current with a set pressure and power.

4. A power supply system for supplying power to a multi-module system according to claim 3, characterized in that: A switching circuit is connected in series between the voltage regulation circuit and the interface module. The switching circuit includes a MOS transistor 1Q1 and an optocoupler 1U3. The gate of the MOS transistor 1Q1 and the four terminals of the optocoupler 1U3 are connected to the +VIN pin of the voltage regulation chip 1U1. The drain of the MOS transistor 1Q1 and the three terminals of the optocoupler 1U3 are connected to the -VIN pin of the voltage regulation chip 1U1. One terminal of the optocoupler 1U3 is connected to the interface module. The source of the MOS transistor 1Q1 is connected to the CTL pin of the voltage regulation chip 1U1 to control the operation of the voltage regulation circuit.

5. The power supply system for supplying power to a multi-module system according to claim 3, characterized in that: The VA terminal is connected to the interface module via an optical coupler 1U4 to transmit the activation status of the voltage regulating circuit to the control module.

6. A power supply system for supplying power to a multi-module system according to claim 2, characterized in that: A charging circuit is connected in series between the conversion circuit and the battery. The charging circuit includes a charging chip U2. The DR S1 pin of the charging chip U2 is connected to the base of the transistor Q1. The emitter of the transistor Q1 is connected to the VBAT+ terminal. A diode D2 is connected in series between the collector of the transistor Q1 and the V_charge+ terminal. The ground terminal leads to the V_charge- terminal for isolated charging of the battery.

7. A power supply system for supplying power to a multi-module system according to claim 6, characterized in that: A current sampling circuit with identical circuit structure is connected in series between the interface module and the input and output ends of the battery. The current sampling circuit at the input end of the battery includes a sampling chip ZU2. The IP+ pin of the sampling chip ZU2 is connected to the V_charge+ end, the IP- pin of the sampling chip ZU2 outputs a first direct current, and the VO pin of the sampling chip ZU2 is connected to the interface module to transmit the current value to the control module.

8. The power supply system for supplying power to a multi-module system according to claim 6, characterized in that: A voltage sampling circuit with the same circuit structure is connected in series between the interface module and the input and output ends of the battery. The voltage sampling circuit at the input end of the battery includes a sampling chip U3. The SI+ pin of the sampling chip U3 is connected to the V_charge+ end, and the SO+ pin of the sampling chip U3 is connected to the interface module to transmit the voltage value to the control module.

9. The power supply system for supplying power to a multi-module system according to claim 7, characterized in that: A current sampling circuit is connected in series between the output end of the voltage regulating circuit and the interface module to monitor the output current of the voltage regulating circuit.

Images