CN219392243U - UPS power supply electric quantity detection circuit - Google Patents
UPS power supply electric quantity detection circuit Download PDFInfo
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- CN219392243U CN219392243U CN202320437954.3U CN202320437954U CN219392243U CN 219392243 U CN219392243 U CN 219392243U CN 202320437954 U CN202320437954 U CN 202320437954U CN 219392243 U CN219392243 U CN 219392243U
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Abstract
The utility model discloses an electric quantity detection circuit of a UPS (uninterrupted Power supply), which relates to the technical field of UPS power supplies and comprises an electric quantity sampling module, a power supply circuit and a power supply circuit, wherein the electric quantity sampling module is used for sampling the electric quantity of the UPS power supply module; the comparison control module is used for detecting the undervoltage and the overvoltage and controlling the channel selection module to transmit signals; the timing control module is used for timing the transmission signal of the control channel selection module; the switch control module is used for controlling the working state of the timing control module; and the intelligent control module is used for receiving the signals. The UPS power supply electric quantity detection circuit samples and detects the electric quantity of the UPS power supply module, the comparison control module detects the undervoltage and overvoltage to be detected on the sampled signals, the control path selection module transmits the sampled signals to the intelligent control module when the undervoltage and the overvoltage to be detected are to be detected, and the timing control module can circularly and regularly control the path selection module to transmit the signals sampled by the electric quantity sampling module to the intelligent control module.
Description
Technical Field
The utility model relates to the technical field of UPS power supplies, in particular to a UPS power supply electric quantity detection circuit.
Background
UPS power (Uninterrupted Power Supply, uninterrupted power source), be the uninterrupted power source that contains energy memory, mainly used provides uninterrupted power supply for the higher equipment of part to power stability requirement, wide application is in stand-by power supply system and emergency power supply system, in order to detect the state of UPS power electric quantity in real time, current UPS power electric quantity detection circuit adopts resistance bleeder circuit to carry out electric quantity detection, and carry out real-time receiving processing by the singlechip to the signal of sampling, the data that lead to the singlechip to handle for a long time and save more, occupy more storage space, therefore need to improve.
Disclosure of Invention
The embodiment of the utility model provides a UPS power supply electric quantity detection circuit, which solves the problems in the background technology.
According to an embodiment of the present utility model, there is provided a UPS power supply power amount detection circuit, including: the system comprises a UPS power module, an electric quantity sampling module, a comparison control module, a timing control module, a passage selection module, a switch control module and an intelligent control module;
the UPS power module is used for providing required electric energy for the circuit and providing sampling electric energy for the electric quantity sampling module;
the electric quantity sampling module is connected with the UPS power module and is used for sampling the electric quantity of the UPS power module and outputting a first sampling signal and a second sampling signal;
the comparison control module is connected with the electric quantity sampling module and is used for detecting the undervoltage and the overvoltage of the second sampling signal through a comparison circuit and integrating and outputting a first control signal;
the timing control module is connected with the UPS power module and is used for circularly outputting a second control signal through a circulation timing circuit;
the access selection module is connected with the comparison control module, the electric quantity sampling module and the timing control module and is used for receiving the first control signal and the second control signal and transmitting the first sampling signal to the intelligent control module;
the switch control module is connected with the timing control module and the comparison control module and is used for carrying out reverse phase processing on the first control signal and isolating and controlling the working state of the timing control module;
the intelligent control module is connected with the passage selection module and is used for processing signals output by the passage selection module.
Compared with the prior art, the utility model has the beneficial effects that: the UPS power supply electric quantity detection circuit samples and detects the electric quantity of the UPS power supply module by the electric quantity sampling module, the comparison control module detects the undervoltage and overvoltage to be detected on the sampled signals through the comparison circuit, the control path selection module transmits the sampled signals to the intelligent control module when the undervoltage and overvoltage are to be detected, and the timing control module circulates the signals sampled by the electric quantity sampling module to the intelligent control module under the condition that the UPS power supply module is normal, so that the circulation timing sampling of data is realized, the quantity of data information acquired by the intelligent control module is reduced, the storage space and calculation work required by the intelligent control module are reduced, and meanwhile, the accuracy of the sampled UPS power supply electric quantity information is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments of the present utility model will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic block diagram of a UPS power supply power detection circuit according to an embodiment of the present utility model.
Fig. 2 is a circuit diagram of a UPS power supply power detection circuit according to an embodiment of the present utility model.
Fig. 3 is a circuit diagram of a connection of a switch control module according to an embodiment of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, in embodiment 1, a UPS power supply power detection circuit includes: the system comprises a UPS power module 1, an electric quantity sampling module 2, a comparison control module 3, a timing control module 4, a passage selection module 5, a switch control module 6 and an intelligent control module 7;
specifically, the UPS power module 1 is configured to provide required power for a circuit and provide sampled power for the power sampling module 2;
the electric quantity sampling module 2 is connected with the UPS power module 1 and is used for sampling the electric quantity of the UPS power module 1 and outputting a first sampling signal and a second sampling signal;
the comparison control module 3 is connected with the electric quantity sampling module 2 and is used for detecting the undervoltage and the overvoltage of the second sampling signal through a comparison circuit and integrating and outputting a first control signal;
the timing control module 4 is connected with the UPS power module 1 and is used for circularly outputting a second control signal through a circular timing circuit;
the path selection module 5 is connected with the comparison control module 3, the electric quantity sampling module 2 and the timing control module 4 and is used for receiving the first control signal and the second control signal and transmitting the first sampling signal to the intelligent control module 7;
the switch control module 6 is connected with the timing control module 4 and the comparison control module 3 and is used for carrying out reverse phase processing on the first control signal and isolating and controlling the working state of the timing control module 4;
and the intelligent control module 7 is connected with the path selection module 5 and is used for processing signals output by the path selection module 5.
In a specific embodiment, the UPS power module 1 may use a UPS power circuit as a detected object, which is not described herein; the electric quantity sampling module 2 can adopt two groups of voltage dividing circuits to sample the electric quantity of the UPS power supply module 1; the comparison control module 3 can adopt a comparison circuit to judge the undervoltage and the overvoltage in the future by matching with a reference voltage; the timing control module 4 may employ a cyclic timing circuit for cyclically outputting a control signal; the path selection module 5 can select an analog switch circuit to select a required analog signal and transmit the analog signal; the switch control module 6 can adopt an inverter circuit and an isolation transmission circuit, the input level signal is overturned through the inverter circuit, and the isolation transmission circuit performs isolation transmission and controls the working state of the timing control module 4; the intelligent control module 7 can adopt microcontrollers such as a singlechip and a DSP, integrates a plurality of components such as an arithmetic unit, a controller, a memory, an input/output unit and the like, and realizes the functions of signal processing, data storage, module control, timing control and the like.
Embodiment 2, please refer to fig. 2 and 3 on the basis of embodiment 1, wherein the UPS power module 1 includes a UPS power device; the electric quantity sampling module 2 comprises a first resistor R1, a second resistor R2, a third resistor R3 and a fourth resistor R4;
specifically, the first end of the UOS power supply device is connected to the first end of the first resistor R1 and the first end of the third resistor R3, the second end of the first resistor R1 is connected to one ends of the path selection module 5 and the second resistor R2, the second end of the UPS power supply device and the other end of the second resistor R2 are grounded, the second end of the third resistor R3 is connected to one ends of the comparison control module 3 and the fourth resistor R4, and the other end of the fourth resistor R4 is grounded.
In a specific embodiment, the first resistor R1, the second resistor R2, the third resistor R3, and the fourth resistor R4 form a resistor divider circuit, which are respectively used for sampling the electric quantity of the UPS power supply device.
Further, the comparison control module 3 includes a first comparator A1, a second comparator A2, a third diode D3, a fourth diode D4, a second switching tube VT2, a first power source VCC1, a ninth resistor R9, a first reference voltage, and a second reference voltage;
specifically, the in-phase end of the first comparator A1 and the inverting end of the second comparator A2 are both connected to the second end of the third resistor R3, the inverting end of the first comparator A1 and the inverting end of the second comparator A2 are respectively connected to the first reference voltage and the second reference voltage, the output end of the first comparator A1 and the output end of the second comparator A2 are respectively connected to the anode of the third diode D3 and the anode of the fourth diode D4, the cathode of the third diode D3 is connected to the cathode of the fourth diode D4 and the base of the second switch tube VT2, the collector of the second switch tube VT2 is connected to the first power source VCC1, the emitter of the second switch tube VT2 is connected to one end of the ninth resistor R9, the path selection module 5 and the switch control module 6, and the other end of the ninth resistor R9 is grounded.
In a specific embodiment, the first comparator A1 and the second comparator A2 may be LM393 comparators, respectively configured to cooperate with a first reference voltage and a second reference voltage to respectively implement detection of an impending overvoltage and an impending undervoltage; the value of the first reference voltage is required to be lower than a normal overvoltage reference value, and the value of the second reference voltage is required to be higher than a normal undervoltage reference value so as to realize the conditions of about to overvoltage and about to undervoltage; the second switching transistor VT2 may be an NPN transistor, which is configured to control the operations of the switching control module 6 and the path selection module 5.
Further, the path selection module 5 includes a first analog switch U2; the intelligent control module 7 comprises a first controller U1;
specifically, the third end and the eighth end of the first analog switch U2 are both connected to the second end of the first resistor R1, the fifth end of the first analog switch U2 is connected to the emitter of the second switch tube VT2, the fourth end and the ninth end of the first analog switch U2 are respectively connected to the first IO end and the second IO end of the first controller U1, and the sixth end of the first analog switch U2 is connected to the timing control module 4.
In a specific embodiment, the first analog switch U2 may be a CD4066 analog switch, which is configured to transmit signals sampled by the first resistor R1 and the second resistor R2 to a first IO terminal and a second IO terminal of the first controller, respectively; the first controller U1 is optional, but not limited to an ST89C52 single-chip microcomputer and an STM32 single-chip microcomputer.
Further, the switch control module 6 includes a first inverter INV1, a tenth resistor R10, a first optocoupler U3, and a sixth resistor R6;
specifically, a first end of the first inverter INV1 is connected to the emitter of the second switching tube VT2, a second end of the first inverter INV1 is connected to a first end of the first optocoupler U3 through a tenth resistor R10, a second end of the first optocoupler U3 is grounded, a third end of the first optocoupler U3 is connected to a third end of the UPS power source device, a fourth end of the first optocoupler U3 is connected to one end of the timing control module 4 and one end of the sixth resistor R6, and another end of the sixth resistor R6 is grounded.
In a specific embodiment, the first inverter INV1 may be a non-logic chip; the first optocoupler U3 may be a PC817 optocoupler, which is used to control the working state of the timing control module 4.
Further, the timing control module 4 includes a first voltage regulator VD1, a second capacitor C2, a first diode D1, a first potentiometer RP1, a second diode D2, a second potentiometer RP2, and a third capacitor C3;
specifically, the cathode of the first voltage stabilizing tube VD1 is connected to one end of the second capacitor C2, the cathode of the first diode D1 and the anode of the second diode D2, the anode of the first diode D1 is connected to one end of the first potentiometer RP1 and the slide end, the cathode of the second diode D2 is connected to one end of the second potentiometer RP2 and the slide end, the other end of the first potentiometer RP1 is connected to the other end of the second potentiometer RP2 and the first end of the third capacitor C3, and the anode of the first voltage stabilizing tube VD1, the other end of the second capacitor C2 and the second end of the third capacitor C3 are all grounded.
Further, the timing control module 4 further includes a first timer U4, a fourth capacitor C4, a fifth resistor R5, a first switching tube VT1, a seventh resistor R7, a first indicator light LED1, and an eighth resistor R8;
specifically, one end of the fifth resistor R5 is connected to the eighth end of the first controller U1, one end of the eighth resistor R8 and the third end of the IPS power device, the other end of the fifth resistor R5 is connected to the seventh end of the first timer U4 and the anode of the second diode D2, the second end and the sixth end of the first timer U4 are both connected to the first end of the third capacitor C3, the fifth end of the first timer U4 is connected to the ground end through the fourth capacitor C4, the first end of the first timer U4 and one end of the seventh resistor R7 are both grounded, the third end of the first timer U4 is connected to the base of the first switch tube VT1, the collector of the first switch tube VT1 is connected to the cathode of the first indicator LED1, the anode of the first indicator LED1 is connected to the other end of the eighth resistor R8, the emitter of the first switch tube VT1 is connected to the other end of the seventh resistor R7 and the sixth end of the first analog switch U2, and the third end of the first timer U4 is connected to the fourth end of the fourth coupler U3.
In a specific embodiment, the first voltage stabilizing tube VD1 and the second capacitor C2 are used for voltage stabilizing and filtering; the first diode D1, the first potentiometer RP1, the second diode D2, the second potentiometer RP2, and the third capacitor C3 provide a cycle timing time for the first timer U4, where the on and off time of the timing can be adjusted by the first potentiometer RP1 and the second potentiometer RP 2; the first controller U1 can be formed by 555 integrated circuits; the first switch VT1 may be an NPN transistor, which is configured to control the operation of the first analog switch U2.
The utility model relates to a UPS power supply electric quantity detection circuit, which is characterized in that the electric quantity of a UPS power supply device is detected through a first resistor R1 and a second resistor R2, a third resistor R3 and a fourth resistor R4, when the electric quantity of the UPS power supply device is normal, in order to avoid the abnormality of the UPS power supply device and facilitate an intelligent control module 7 to solve the power consumption condition of the UPS power supply device, a first timer U4 in a timing control module 4 is matched with a first diode D1, a first potentiometer RP1, a second diode D2, a second potentiometer RP2 and a third capacitor C3 to form a circulation timing circuit, a control signal is circularly output from the third end of the first timer U4 to control the conduction of a first switch tube VT1, a first indicator lamp LED1 is lightened, the sixth end of a first analog switch U2 is changed into a high level, the eighth end and the ninth end of the first analog switch U2 are conducted, the signal sampled by the first resistor R1 and the second resistor R2 is transmitted to the second IO end of the first controller U1, the first controller U1 processes data, the third resistor R3 and the fourth resistor R4 provide sampling signals for the first comparator A1 and the second comparator A2, when the UPS power supply device is about to be undervoltage or about to be overvoltage, the first comparator A1 and the second comparator A2 control the second switch tube VT2 to be conducted, the second switch tube VT2 controls the fifth end of the first analog switch U2 to be changed into high level, the first inverter INV1 converts the input high level into low level, the first optocoupler U3 is cut off, the first timer U4 stops working, the third end and the fourth end of the first analog switch U2 are conducted, and the data are transmitted to the first IO end of the first controller U1 to conduct fault data recording, so that the electric quantity detection of the UPS power supply device is realized.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. A UPS power supply power detection circuit is characterized in that,
the UPS power supply electric quantity detection circuit comprises: the system comprises a UPS power module, an electric quantity sampling module, a comparison control module, a timing control module, a passage selection module, a switch control module and an intelligent control module;
the UPS power module is used for providing required electric energy for the circuit and providing sampling electric energy for the electric quantity sampling module;
the electric quantity sampling module is connected with the UPS power module and is used for sampling the electric quantity of the UPS power module and outputting a first sampling signal and a second sampling signal;
the comparison control module is connected with the electric quantity sampling module and is used for detecting the undervoltage and the overvoltage of the second sampling signal through a comparison circuit and integrating and outputting a first control signal;
the timing control module is connected with the UPS power module and is used for circularly outputting a second control signal through a circulation timing circuit;
the access selection module is connected with the comparison control module, the electric quantity sampling module and the timing control module and is used for receiving the first control signal and the second control signal and transmitting the first sampling signal to the intelligent control module;
the switch control module is connected with the timing control module and the comparison control module and is used for carrying out reverse phase processing on the first control signal and isolating and controlling the working state of the timing control module;
the intelligent control module is connected with the passage selection module and is used for processing signals output by the passage selection module.
2. The UPS power supply power detection circuit of claim 1 wherein the UPS power module includes UPS power supply means; the electric quantity sampling module comprises a first resistor, a second resistor, a third resistor and a fourth resistor;
the first end of the UPS power supply device is connected with the first end of the first resistor and the first end of the third resistor, the second end of the first resistor is connected with one end of the path selection module and one end of the second resistor, the second end of the UPS power supply device and the other end of the second resistor are grounded, the second end of the third resistor is connected with one end of the comparison control module and one end of the fourth resistor, and the other end of the fourth resistor is grounded.
3. The UPS power supply power detection circuit of claim 2 wherein the comparison control module includes a first comparator, a second comparator, a third diode, a fourth diode, a second switching tube, a first power supply, a ninth resistor, a first reference voltage, and a second reference voltage;
the non-inverting terminal of the first comparator and the inverting terminal of the second comparator are both connected with the second terminal of the third resistor, the inverting terminal of the first comparator and the inverting terminal of the second comparator are respectively connected with a first reference voltage and a second reference voltage, the output terminal of the first comparator and the output terminal of the second comparator are respectively connected with the anode of the third diode and the anode of the fourth diode, the cathode of the third diode is connected with the cathode of the fourth diode and the base of the second switching tube, the collector of the second switching tube is connected with the first power supply, the emitter of the second switching tube is connected with one end of the ninth resistor, the path selection module and the switch control module, and the other end of the ninth resistor is grounded.
4. A UPS power supply power detection circuit as claimed in claim 3 wherein the path selection module comprises a first analogue switch; the intelligent control module comprises a first controller;
the third end and the eighth end of the first analog switch are both connected with the second end of the first resistor, the fifth end of the first analog switch is connected with the emitter of the second switch tube, the fourth end and the ninth end of the first analog switch are respectively connected with the first IO end and the second IO end of the first controller, and the sixth end of the first analog switch is connected with the timing control module.
5. The UPS power source power detection circuit of claim 4 wherein the switch control module includes a first inverter, a tenth resistor, a first optocoupler, and a sixth resistor;
the first end of the first inverter is connected with the emitter of the second switching tube, the second end of the first inverter is connected with the first end of the first optical coupler through a tenth resistor, the second end of the first optical coupler is grounded, the third end of the first optical coupler is connected with the third end of the UPS power supply device, the fourth end of the first optical coupler is connected with one end of the timing control module and the sixth resistor, and the other end of the sixth resistor is grounded.
6. The UPS power supply power detection circuit of claim 5 wherein the timing control module includes a first voltage regulator, a second capacitor, a first diode, a first potentiometer, a second diode, a second potentiometer, a third capacitor;
the cathode of the first voltage stabilizing tube is connected with one end of the second capacitor, the cathode of the first diode and the anode of the second diode, the anode of the first diode is connected with one end of the first potentiometer and the slide sheet end, the cathode of the second diode is connected with one end of the second potentiometer and the slide sheet end, the other end of the first potentiometer is connected with the other end of the second potentiometer and the first end of the third capacitor, and the anode of the first voltage stabilizing tube, the other end of the second capacitor and the second end of the third capacitor are grounded.
7. The UPS power source power detection circuit of claim 6 wherein the timing control module further includes a first timer, a fourth capacitor, a fifth resistor, a first switch tube, a seventh resistor, a first indicator light, an eighth resistor;
one end of the fifth resistor is connected with the eighth end of the first controller, one end of the eighth resistor and the third end of the UPS power supply device, the other end of the fifth resistor is connected with the seventh end of the first timer and the anode of the second diode, the second end and the sixth end of the first timer are both connected with the first end of the third capacitor, the fifth end of the first timer is connected with the ground end through the fourth capacitor, the first end of the first timer and one end of the seventh resistor are both grounded, the third end of the first timer is connected with the base electrode of the first switch tube, the collector electrode of the first switch tube is connected with the cathode of the first indicator lamp, the anode of the first indicator lamp is connected with the other end of the eighth resistor, the emitter electrode of the first switch tube is connected with the other end of the seventh resistor and the sixth end of the first analog switch, and the fourth end of the first timer is connected with the fourth end of the first optical coupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320437954.3U CN219392243U (en) | 2023-03-09 | 2023-03-09 | UPS power supply electric quantity detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320437954.3U CN219392243U (en) | 2023-03-09 | 2023-03-09 | UPS power supply electric quantity detection circuit |
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| Publication Number | Publication Date |
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| CN219392243U true CN219392243U (en) | 2023-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320437954.3U Active CN219392243U (en) | 2023-03-09 | 2023-03-09 | UPS power supply electric quantity detection circuit |
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| CN (1) | CN219392243U (en) |
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