CN218888201U - High-power automatic switching power supply circuit with current monitoring and communication functions - Google Patents
High-power automatic switching power supply circuit with current monitoring and communication functions Download PDFInfo
- Publication number
- CN218888201U CN218888201U CN202222405796.1U CN202222405796U CN218888201U CN 218888201 U CN218888201 U CN 218888201U CN 202222405796 U CN202222405796 U CN 202222405796U CN 218888201 U CN218888201 U CN 218888201U
- Authority
- CN
- China
- Prior art keywords
- pin
- power supply
- port
- resistor
- system power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
Abstract
The utility model provides a high power automatic switch-over power supply circuit with current monitoring and communication function includes: microcontroller, communication chip, current detection chip, constant voltage power supply chip, switching power supply, the direct current module of stepping up, battery charging module, bridge rectifier, a plurality of power MOSFET pipe, built-in battery, the switch, a plurality of electric coupler, a plurality of resistance, a plurality of filter capacitor, a plurality of diodes, communication interface, power output interface, alternating current power input interface. The utility model discloses device built-in treater of circuit can gather outside AC power supply state in real time to according to the automatic seamless handover who carries out built-in battery power supply and external switch power supply of outside power supply state, guarantee consumer's safety and stability moves, and can send status information to the host computer in real time through the communication port, provide corresponding early warning information for the host computer, prevent that the outage from appearing and cause the damage for the consumer.
Description
Technical Field
The utility model relates to a power management monitoring circuit's technical field particularly, especially relates to a high power automatic switch-over power supply circuit with current monitoring and communication function.
Background
A well-performing power supply system is a necessary guarantee and indispensable key component for the proper and stable operation of portable laboratory equipment.
At present, equipment using alternating current power supply is generally provided with a UPS (uninterrupted power supply) as an emergency guarantee when uninterrupted operation is required, but due to the fact that the volume and the weight of a lead-acid battery used by the UPS are quite large, when the equipment needs to be moved to a working state, the requirements cannot be met, and the application of some equipment in a moving scene and the application of part of field and emergency sites are limited.
SUMMERY OF THE UTILITY MODEL
In light of the above-mentioned technical problems of the prior art, a high power auto-switching power supply circuit with current monitoring and communication functions is provided. The utility model discloses contain a high power automatic switch-over power supply circuit with current monitoring and communication function, can provide high power output DC voltage when not having external AC power supply, ensure equipment normal operating, automatic switch-over switch mains operated when having outside AC power supply, seamless switch-over to built-in battery power supply during proruption outage guarantees high power equipment's uninterrupted operation.
The utility model discloses a technical means as follows:
a high power automatic switching power supply circuit with current monitoring and communication functions, characterized by comprising:
the power supply comprises a controller U1, a communication chip U2, a current detection chip U3, a voltage-stabilized power supply chip U4, a switching power supply M1, a direct-current boosting module M2, a battery charging module M3, a bridge rectifier BR1, power MOSFET (metal-oxide-semiconductor field effect transistor) tubes Q1, Q2, Q3 and Q4, a built-in battery BAT, a switch S1, photoelectric couplers OP1, OP2 and OP3, resistors R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10, filter capacitors C1, C2 and C3, diodes D1 and D2, a communication interface P1, a power output interface P2 and an alternating-current power supply input interface P3;
the 1 st pin of the alternating current power supply input interface P3 is connected to the 1 st pin of the switching power supply M1 and simultaneously connected to the 1 st pin of the bridge rectifier BR 1; a 2 nd pin of the alternating current power supply input interface P3 is connected to a 2 nd pin of the switching power supply M1 and is simultaneously connected to a 2 nd pin of the bridge rectifier BR 1; a 3 rd pin of the bean bridge rectifier BR1 is connected to a 1 st port of the resistor R2; the 2 nd port of the resistor R2 is connected to the 1 st port of the filter capacitor C1 and is simultaneously connected to the 1 st pin of the photoelectric coupler OP 1; a 4 th pin of the bridge rectifier BR1 is connected to a 2 nd port of the filter capacitor C1 and is simultaneously connected to a 2 nd pin of a photoelectric coupler OP 1; a 3 rd pin of the photoelectric coupler OP1 is connected to a system power supply return end; a 4 th pin of the photoelectric coupler OP1 is connected to a 1 st pin of the resistor R1 and simultaneously connected to a 7 th pin of the microprocessor U1; and the No. 2 pin of the resistor R1 is connected to a VCC end of a system power supply.
Compared with the prior art, the utility model has the advantages of it is following:
1. the utility model discloses a two power MOSFET pipe back of the body connected mode realize that the power prevents flowing backward the function, directly carry out reverse power supply to built-in battery when preventing outside alternating current power supply, protection battery safety.
2. The utility model discloses a supply current of current detection chip during to built-in battery power supply mode carries out real-time supervision to return detected voltage and carry out the processing that corresponds to microcontroller, prevent that the electric current from too big causing built-in battery to damage the trouble.
3. The utility model discloses have built-in battery voltage monitoring function, can prevent that built-in battery overdischarge from causing built-in battery trouble.
4. The utility model discloses a communication chip sends real-time supervision data to the host computer, carries out data centralized management and alarm monitoring.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a circuit diagram of the high power automatic switching power supply with current monitoring and communication functions of the present invention.
U1 is a microcontroller, U2 is a communication chip, U3 is a current detection chip, U4 is a voltage stabilization chip, M1 is a switching power supply, M2 is a direct current boost module, M3 is a battery charging module, BR1 is a bridge rectifier, Q1, Q2, Q3 and Q4 are power MOSFET (metal-oxide-semiconductor field effect transistor), BAT is a built-in battery, S1 is a switch, OP1, OP2 and OP3 are photoelectric couplers, R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10 are resistors, C1, C2 and C3 are filter capacitors, D1 and D2 are diodes, P1 is a communication interface, P2 is a power output interface, and P3 is an alternating current power supply input interface.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in other sequences than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
As shown in fig. 1, the utility model provides a high power automatic switch-over power supply circuit with current monitoring and communication function, include: the power supply comprises a controller U1, a communication chip U2, a current detection chip U3, a voltage-stabilized power supply chip U4, a switching power supply M1, a direct-current boosting module M2, a battery charging module M3, a bridge rectifier BR1, power MOSFET tubes Q1, Q2, Q3 and Q4, a built-in battery BAT, a switch S1, photoelectric couplers OP1, OP2 and OP3, resistors R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10, filter capacitors C1, C2 and C3, diodes D1 and D2, a communication interface P1, a power output interface P2 and an alternating-current power supply input interface P3.
In the present application, the 1 st pin of the ac power input interface P3 is connected to the 1 st pin of the switching power supply M1, and is also connected to the 1 st pin of the bridge rectifier BR 1; a 2 nd pin of the alternating current power supply input interface P3 is connected to a 2 nd pin of the switching power supply M1 and is simultaneously connected to a 2 nd pin of the bridge rectifier BR 1; a 3 rd pin of the bean bridge rectifier BR1 is connected to a 1 st port of the resistor R2; the 2 nd port of the resistor R2 is connected to the 1 st port of the filter capacitor C1 and is simultaneously connected to the 1 st pin of the photoelectric coupler OP 1; a 4 th pin of the bridge rectifier BR1 is connected to a 2 nd port of the filter capacitor C1 and is simultaneously connected to a 2 nd pin of a photoelectric coupler OP 1; a 3 rd pin of the photoelectric coupler OP1 is connected to a system power supply return end; a 4 th pin of the photoelectric coupler OP1 is connected to a 1 st pin of the resistor R1 and simultaneously connected to a 7 th pin of the microprocessor U1; and the No. 2 pin of the resistor R1 is connected to a VCC end of a system power supply.
In a preferred embodiment, the 2 nd pin of the microprocessor U1 is connected to the 1 st pin of the communication chip U2; the 3 rd pin of the microprocessor U1 is connected to the 4 th pin of the communication chip U2; the 6 th pin of the microprocessor U1 is simultaneously connected to the 2 nd pin and the 3 rd pin of the communication chip U2; the 5 th pin of the communication chip is connected to a system power supply return end; the 6 th pin of the communication chip is connected to the 2 nd pin of the communication interface P1; the 7 th pin of the communication chip is connected to the 1 st pin of the communication interface P1; the 8 th pin of the communication chip is connected to a VCC end of a system power supply; a 10 th pin of the microprocessor U1 is connected to a system power supply return end; a 11 th pin of the microprocessor U1 is connected to a 1 st port of a switch S1, and a 2 nd port of the switch S1 is connected to a system power supply return end; a 16 th pin of the microprocessor U1 is connected to a 3 rd pin of a current detection chip U3 and is simultaneously connected to a 1 st port of a filter capacitor C2; the 2 nd port of the filter capacitor C2 is connected to a system power supply return end; a 17 th pin of the microprocessor U1 is connected to a 1 st port of a resistor R9, simultaneously connected to a 1 st port of a resistor R10 and simultaneously connected to a 1 st port of a filter capacitor C3; the No. 2 port of the filter capacitor C3 is connected to a system power supply return end; the 2 nd port of the resistor R10 is connected to a system power supply return end; the 18 th pin of the microprocessor U1 is connected to the 2 nd pin of a photoelectric coupler OP 3; the 19 th pin of the microprocessor U1 is connected to the 2 nd pin of the photoelectric coupler OP 2; the 20 th pin of the microprocessor U1 is connected to a system power supply VCC terminal.
In a preferred embodiment, the 4 th pin of the switching power supply M1 is connected to a system power supply return terminal; a 3 rd pin of the switching power supply M1 is connected to a 2 nd pin of a power MOSFET Q1, is simultaneously connected to a 3 rd pin of a charging module M3, and is simultaneously connected to the anode of a diode D1; the negative electrode of the built-in battery BAT is connected to the return end of the system power supply; the positive electrode of the built-in battery is connected to a 1 st pin of a charging module M3, is also connected to a 2 nd pin of a power MOSFET Q3, is also connected to a 2 nd port of a resistor R9, and is also connected to the positive electrode of a diode D2; the 2 nd pin and the 4 th pin of the charging module M3 are simultaneously connected to a system power supply return end; the negative electrode of the diode D1 is connected to the negative electrode of the diode D2 and is simultaneously connected to the 1 st pin of the voltage stabilizing chip U4; the No. 2 pin of the voltage stabilizing chip is connected to a system power supply return end; and the 3 rd pin of the voltage stabilizing chip is connected to a VCC end of a system power supply.
In a preferred embodiment, the 3 rd pin of the power MOSFET Q1 is connected to the 3 rd pin of the power MOSFET Q2, and is also connected to the 1 st port of the resistor R3; the 1 st pin of the power MOSFET Q1 is connected to the 1 st pin of the power MOSFET Q2, is also connected to the 2 nd port of the resistor R3 and is also connected to the 1 st port of the resistor R4; the No. 2 port of the resistor R4 is connected to a No. 4 pin of the photoelectric coupler OP 2; a 3 rd pin of the photoelectric coupler OP2 is connected to a system power supply return end; a 1 st pin of the photoelectric coupler OP2 is connected to a 1 st port of the resistor R5; a 2 nd port of the resistor R5 is connected to a VCC end of a system power supply; a 2 nd pin of a power MOSFET Q2 is connected to a 3 rd pin of a direct current boost module M2 and is simultaneously connected to a 1 st pin of a power output interface P2; a 2 nd pin of a power output interface P2 is connected to a system power supply return end;
in a preferred embodiment, the 3 rd pin of the power MOSFET Q3 is connected to the 3 rd pin of the power MOSFET Q4, and is also connected to the 1 st port of the resistor R6; a 1 st pin of a power MOSFET Q3 is connected to a 1 st pin of a power MOSFET Q4, is simultaneously connected to a 2 nd port of a resistor R6 and is simultaneously connected to a 1 st port of a resistor R7; the 2 nd port of the resistor R7 is connected to the 4 th pin of the photoelectric coupler OP 3; a 3 rd pin of the photoelectric coupler OP3 is connected to a system power supply return end; a 1 st pin of the photoelectric coupler OP3 is connected to a 1 st port of the resistor R8; a 2 nd port of the resistor R8 is connected to a VCC end of a system power supply; the No. 2 pin of a power MOSFET Q4 is connected to the No. 4 pin of a current detection chip U3; a 5 th pin of the current detection chip U3 is connected to a 1 st pin of the boosting module M2; a 1 st pin of a current detection chip U3 is connected to a VCC end of a system power supply; a No. 2 pin of the current detection chip U3 is connected to a system power supply return end; the 2 nd pin and the 4 th pin of the direct current boost module M2 are simultaneously connected to a system power supply return end; the 3 rd pin of the direct current boost module M2 is connected to the 1 st pin of the power output interface P2; the 2 nd pin of the power output interface P2 is connected to the system power return terminal.
In a preferred embodiment, the microcontroller U1 detects an external ac power supply state, determines whether or not to supply power to the switching power supply, and selects the switching power supply or the internal battery power supply when the power supply is started.
Preferably, the microcontroller U1 monitors the power supply state in real time when the external ac power is supplied. And the microcontroller U1 forwards data to be transmitted to an upper computer through a communication chip to finish the transmission of real-time state and early warning information.
Example 1
A high-power automatic switching power supply circuit with current monitoring and communication functions is characterized in that an STC series STC12C5616 microcontroller is adopted in U1, an MAX485 communication chip is adopted in U2, an ASCII712-5 Hall current detection chip is adopted in U3, an LM7805 voltage-stabilized power supply is adopted in U4, a 400WDC24V switching power supply is adopted in M1, a 24VDCDC voltage boosting module is adopted in M2, a 16.8V battery charging module is adopted in M3, a DB107S bridge rectifier is adopted in BR1, IRF4905 power MOSFET tubes are adopted in Q1, Q2, Q3 and Q4, and a high-power lithium battery pack is selected in BAT 4 strings, the switch is characterized in that a DS-211 type switch is selected as S1, TLP521 type optoelectronic couplers are selected as OP1, OP2 and OP3, a C1 diode with a value of 0.1uF, a C2 diode with a value of 0.1uF, a C3 diode with a value of 0.1uF and a D1 diode with a value of 1N4001 are selected as D2, a 1 diode with a value of 1N4001 is selected as D2, a 10K omega is selected as R1, a 680K omega is selected as R2, a 680K omega is selected as R3, a 100 omega is selected as R4, an 820 omega is selected as R5, a 680K omega is selected as R6, a 100 omega is selected as R7, an 820 omega is selected as R8, a 270K omega is selected as R9, a 100K omega is selected as R10, an XH2.54-2P connector is selected as P1, a KF128-2P-5 connector is selected as P2, and a KF128-2P-5 connector is selected as P3.
The output voltage of the switch power supply and the output voltage of the built-in battery are respectively reduced to VCC by the voltage stabilizing power supply after passing through the two isolation diodes, and the voltage required by the control system is provided. When the starting switch is pressed down, the microcontroller detects that the button is pressed down, then detects an alternating current power supply signal, and when the bridge rectifier is detected to output voltage, the power MOSFET backflow prevention circuit for controlling the power supply of the switching power supply is switched on, and the power MOSFET backflow prevention circuit for controlling the power supply of the built-in battery is switched off. When the existence of alternating current power supply is not detected, a power MOSFET (metal oxide semiconductor field effect transistor) anti-backflow circuit for controlling the power supply of the built-in battery is directly conducted, the voltage of the battery is boosted to DC24V by the boost module to provide output voltage, and meanwhile, the output current of the built-in battery is monitored, so that the battery is prevented from being damaged by overcurrent. When the power supply burst power failure is carried out by an external alternating current power supply, the microcontroller detects the power failure of the alternating current power supply, immediately switches on the power MOSFET backflow prevention circuit for controlling the power supply of the built-in battery, boosts the voltage to DC24V by the boost module, maintains the power output, simultaneously switches off the power MOSFET backflow prevention circuit for controlling the power supply of the switching power supply, simultaneously monitors the output current of the built-in battery, and prevents the battery from being damaged by overcurrent.
The above embodiment numbers of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments. In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments. In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (6)
1. A high power automatic switching power supply circuit with current monitoring and communication functions, characterized by comprising:
the power supply comprises a controller U1, a communication chip U2, a current detection chip U3, a voltage-stabilized power supply chip U4, a switching power supply M1, a direct-current boosting module M2, a battery charging module M3, a bridge rectifier BR1, power MOSFET (metal-oxide-semiconductor field effect transistor) tubes Q1, Q2, Q3 and Q4, a built-in battery BAT, a switch S1, photoelectric couplers OP1, OP2 and OP3, resistors R1, R2, R3, R4, R5, R6, R7, R8, R9 and R10, filter capacitors C1, C2 and C3, diodes D1 and D2, a communication interface P1, a power output interface P2 and an alternating-current power supply input interface P3;
the 1 st pin of the alternating current power supply input interface P3 is connected to the 1 st pin of the switching power supply M1 and simultaneously connected to the 1 st pin of the bridge rectifier BR 1; a 2 nd pin of the alternating current power supply input interface P3 is connected to a 2 nd pin of a switching power supply M1 and is also connected to a 2 nd pin of a bridge rectifier BR 1; a No. 3 pin of the bean bridge rectifier BR1 is connected to a No. 1 port of the resistor R2; the 2 nd port of the resistor R2 is connected to the 1 st port of the filter capacitor C1 and is simultaneously connected to the 1 st pin of the photoelectric coupler OP 1; a 4 th pin of the bridge rectifier BR1 is connected to a 2 nd port of the filter capacitor C1 and is simultaneously connected to a 2 nd pin of a photoelectric coupler OP 1; a No. 3 pin of the photoelectric coupler OP1 is connected to a system power supply return end; a 4 th pin of the photoelectric coupler OP1 is connected to a 1 st pin of the resistor R1 and simultaneously connected to a 7 th pin of the microprocessor U1; and the 2 nd pin of the resistor R1 is connected to a VCC end of a system power supply.
2. The high-power automatic switching power supply circuit with current monitoring and communication functions of claim 1,
the No. 2 pin of the microprocessor U1 is connected to the No. 1 pin of the communication chip U2; the No. 3 pin of the microprocessor U1 is connected to the No. 4 pin of the communication chip U2; the 6 th pin of the microprocessor U1 is simultaneously connected to the 2 nd pin and the 3 rd pin of the communication chip U2; the 5 th pin of the communication chip is connected to a system power supply return end; the 6 th pin of the communication chip is connected to the 2 nd pin of the communication interface P1; the 7 th pin of the communication chip is connected to the 1 st pin of the communication interface P1; the 8 th pin of the communication chip is connected to a VCC end of a system power supply; a 10 th pin of the microprocessor U1 is connected to a system power supply return end; a 11 th pin of the microprocessor U1 is connected to a 1 st port of a switch S1, and a 2 nd port of the switch S1 is connected to a system power supply return end; a 16 th pin of the microprocessor U1 is connected to a 3 rd pin of a current detection chip U3 and is simultaneously connected to a 1 st port of a filter capacitor C2; the 2 nd port of the filter capacitor C2 is connected to a system power supply return end; a 17 th pin of the microprocessor U1 is connected to a 1 st port of a resistor R9, simultaneously connected to a 1 st port of a resistor R10 and simultaneously connected to a 1 st port of a filter capacitor C3; the No. 2 port of the filter capacitor C3 is connected to a system power supply return end; the No. 2 port of the resistor R10 is connected to a system power supply return end; the 18 th pin of the microprocessor U1 is connected to the 2 nd pin of a photoelectric coupler OP 3; the 19 th pin of the microprocessor U1 is connected to the 2 nd pin of the photoelectric coupler OP 2; the 20 th pin of the microprocessor U1 is connected to a system power supply VCC terminal.
3. The high power automatic switching power supply circuit with current monitoring and communication functions as claimed in claim 1,
the 4 th pin of the switching power supply M1 is connected to a system power supply return end; a 3 rd pin of the switching power supply M1 is connected to a 2 nd pin of a power MOSFET Q1, is simultaneously connected to a 3 rd pin of a charging module M3, and is simultaneously connected to the anode of a diode D1; the negative electrode of the built-in battery BAT is connected to the system power supply return end; the positive electrode of the built-in battery is connected to a 1 st pin of a charging module M3, is also connected to a 2 nd pin of a power MOSFET Q3, is also connected to a 2 nd port of a resistor R9, and is also connected to the positive electrode of a diode D2; the 2 nd pin and the 4 th pin of the charging module M3 are simultaneously connected to a system power supply return end; the negative electrode of the diode D1 is connected to the negative electrode of the diode D2 and is simultaneously connected to the 1 st pin of the voltage stabilizing chip U4; the No. 2 pin of the voltage stabilizing chip is connected to a system power supply return end; and the 3 rd pin of the voltage stabilizing chip is connected to a VCC end of a system power supply.
4. The high power automatic switching power supply circuit with current monitoring and communication functions as claimed in claim 1,
the 3 rd pin of the power MOSFET Q1 is connected to the 3 rd pin of the power MOSFET Q2 and is also connected to the 1 st port of a resistor R3; the 1 st pin of the power MOSFET Q1 is connected to the 1 st pin of the power MOSFET Q2, is also connected to the 2 nd port of the resistor R3 and is also connected to the 1 st port of the resistor R4; the 2 nd port of the resistor R4 is connected to the 4 th pin of the photoelectric coupler OP 2; a 3 rd pin of the photoelectric coupler OP2 is connected to a system power supply return end; a 1 st pin of the photoelectric coupler OP2 is connected to a 1 st port of the resistor R5; a No. 2 port of the resistor R5 is connected to a VCC end of a system power supply; a 2 nd pin of a power MOSFET Q2 is connected to a 3 rd pin of a direct current boost module M2 and simultaneously connected to a 1 st pin of a power output interface P2; a 2 nd pin of a power output interface P2 is connected to a system power supply return end;
the 3 rd pin of the power MOSFET Q3 is connected to the 3 rd pin of the power MOSFET Q4 and is also connected to the 1 st port of the resistor R6; the 1 st pin of a power MOSFET Q3 is connected to the 1 st pin of a power MOSFET Q4, is also connected to the 2 nd port of a resistor R6 and is also connected to the 1 st port of a resistor R7; the 2 nd port of the resistor R7 is connected to the 4 th pin of the photoelectric coupler OP 3; a 3 rd pin of the photoelectric coupler OP3 is connected to a system power supply return end; a 1 st pin of the photoelectric coupler OP3 is connected to a 1 st port of the resistor R8; a 2 nd port of the resistor R8 is connected to a VCC end of a system power supply; a No. 2 pin of a power MOSFET Q4 is connected to a No. 4 pin of a current detection chip U3; a 5 th pin of the current detection chip U3 is connected to a 1 st pin of the boosting module M2; a 1 st pin of a current detection chip U3 is connected to a VCC end of a system power supply; a No. 2 pin of the current detection chip U3 is connected to a system power supply return end; the 2 nd pin and the 4 th pin of the direct current boost module M2 are simultaneously connected to a system power supply return end; the 3 rd pin of the direct current boost module M2 is connected to the 1 st pin of the power output interface P2; the 2 nd pin of the power output interface P2 is connected to the system power return terminal.
5. The high-power automatic switching power supply circuit with the current monitoring and communication functions as claimed in claim 1, wherein the controller U1 monitors the power supply state of the external ac power supply in real time.
6. The high-power automatic switching power supply circuit with the current monitoring and communication functions as claimed in claim 1, wherein the controller U1 forwards data to be transmitted to an upper computer through a communication chip to complete real-time state and early warning information transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222405796.1U CN218888201U (en) | 2022-09-09 | 2022-09-09 | High-power automatic switching power supply circuit with current monitoring and communication functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222405796.1U CN218888201U (en) | 2022-09-09 | 2022-09-09 | High-power automatic switching power supply circuit with current monitoring and communication functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218888201U true CN218888201U (en) | 2023-04-18 |
Family
ID=85944606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222405796.1U Active CN218888201U (en) | 2022-09-09 | 2022-09-09 | High-power automatic switching power supply circuit with current monitoring and communication functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218888201U (en) |
-
2022
- 2022-09-09 CN CN202222405796.1U patent/CN218888201U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103828185A (en) | Dual boost converter for ups system | |
| CN108075562B (en) | High-power portable electric equipment and power supply control device and method thereof | |
| CN102684293A (en) | Methods and apparatus for providing uninterruptible power | |
| CN103248100B (en) | A kind of back-up power source charging-dischargingcontrol control circuit | |
| CN111769630A (en) | Electric power low-voltage direct-current redundant power supply system | |
| CN106773997A (en) | A kind of auto powering on/off apparatus, method and insert row | |
| CN201878232U (en) | Mobile phone with double batteries | |
| CN203278327U (en) | Backup power supply charging and discharging control circuit | |
| CN207559679U (en) | High-power portable electrical equipment and its power control | |
| CN110429702A (en) | Power output apparatus and power supply output method | |
| CN218888201U (en) | High-power automatic switching power supply circuit with current monitoring and communication functions | |
| CN205960679U (en) | Battery is full of protection circuit and charger | |
| CN107863818B (en) | Intelligent integrated uninterrupted multi-path direct current output switching power supply | |
| CN103269118A (en) | Back-up source power supply control circuit | |
| CN201153341Y (en) | Control circuit for double-wire emergent lamp | |
| CN215120269U (en) | Uninterrupted power supply system | |
| KR100721960B1 (en) | Charge apparatus of second battery within electronic equipment utilized one of commercial alternating power source and dc power source of personal computer | |
| CN114726036A (en) | Multi-path bidirectional variable-voltage control device and controller | |
| CN102118057A (en) | DC UPS circuit with integrated charge-discharge circuit | |
| CN210804042U (en) | Lower computer power-on and power-off time sequence control system and robot | |
| CN114006433A (en) | Battery device | |
| CN108092406B (en) | Dual-path power supply method and system for photovoltaic power generation and intelligent power consumption monitoring | |
| CN213754069U (en) | Intelligent quick-charging portable device supporting multi-path output | |
| CN215911940U (en) | UPS power supply device of power acquisition equipment | |
| CN210927101U (en) | Power supply with liquid crystal display |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |