CN214539769U - Circuit breaker RTC battery voltage detection circuit - Google Patents
Circuit breaker RTC battery voltage detection circuit Download PDFInfo
- Publication number
- CN214539769U CN214539769U CN202120684490.7U CN202120684490U CN214539769U CN 214539769 U CN214539769 U CN 214539769U CN 202120684490 U CN202120684490 U CN 202120684490U CN 214539769 U CN214539769 U CN 214539769U
- Authority
- CN
- China
- Prior art keywords
- circuit
- resistor
- circuit breaker
- rtc battery
- battery voltage
- 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
- 238000001514 detection method Methods 0.000 title claims abstract description 43
- 238000005070 sampling Methods 0.000 claims abstract description 33
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Images
Landscapes
- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model provides a pair of circuit breaker RTC battery voltage's detection circuitry, include: the circuit breaker RTC battery voltage sampling circuit, voltage detection circuit, control circuit acquire voltage sampling signal through circuit breaker RTC battery voltage sampling circuit, and voltage detection circuit will predetermine voltage reference signal and voltage sampling signal and compare, generate level signal to send to control circuit, effectively detect the electric quantity of circuit breaker RTC battery.
Description
Technical Field
The utility model relates to an intelligence circuit breaker technical field, concretely relates to circuit breaker RTC battery voltage's detection circuitry.
Background
The intelligent circuit breaker has the requirement of measurement and Real-time clock (RTC), and the Real-time clock needs the reserve battery to supply power when the system has a power failure, but along with the increase of intelligent circuit breaker life-span, single battery often can not provide sufficient operating time, need carry out the electric quantity detection of battery at the operation in-process, and when the battery electric quantity was less than the setting value, the intelligent circuit breaker should give the battery electric quantity and report to the police. Due to the limited battery power, there is a problem how to effectively detect the RTC battery power of the circuit breaker at a lower cost.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the defect that how can effectively detect circuit breaker RTC battery power with littleer cost among the prior art.
The utility model provides a detection circuitry of circuit breaker RTC battery voltage, include: the circuit breaker RTC battery voltage sampling circuit is sequentially connected with the control circuit through the voltage detection circuit;
the circuit breaker RTC battery voltage sampling circuit provides a voltage sampling signal for the voltage detection circuit;
the voltage detection circuit is used for comparing a preset voltage reference signal with a voltage sampling signal, generating a level signal and sending the level signal to the control circuit.
In one embodiment, the method further comprises: and the power supply circuit is connected with the voltage detection circuit and is used for providing a power supply for the voltage detection circuit.
In one embodiment, the method further comprises: and the alarm module is connected with the control circuit and used for providing an alarm signal for the circuit breaker.
In one embodiment, the voltage detection circuit includes: a first resistor, a second resistor, a third resistor, a fourth resistor, and a comparator,
one end of the first resistor is respectively connected with the positive power supply end of the comparator and the power supply circuit, and the other end of the first resistor is respectively connected with the reverse input end of the comparator and one end of the third resistor;
one end of the second resistor is connected with one end of the RTC battery voltage sampling circuit of the circuit breaker, and the other end of the second resistor is connected with the positive input end of the comparator;
the other end of the third resistor is respectively connected with the other end of the RTC battery voltage sampling circuit of the circuit breaker, the negative power supply end of the comparator and one end of the fourth resistor and is grounded;
the other end of the fourth resistor is connected with the output end of the comparator.
In one embodiment, the control circuit includes: singlechip, DSP, FPGA.
The utility model discloses technical scheme has following advantage:
the utility model provides a pair of circuit breaker RTC battery voltage's detection circuitry, include: the circuit breaker RTC battery voltage sampling circuit, voltage detection circuit, control circuit acquire voltage sampling signal through circuit breaker RTC battery voltage sampling circuit, and voltage detection circuit will predetermine voltage reference signal and voltage sampling signal and compare, generate level signal to send to control circuit, through alarm module, report to the police to the battery electric quantity, effectively detect the electric quantity of circuit breaker RTC battery.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described 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 creative efforts.
Fig. 1 is a schematic block diagram of a specific example of a circuit breaker RTC battery voltage detection circuit in an embodiment of the present invention;
fig. 2 is a schematic block diagram of another specific example of the circuit breaker RTC battery voltage detection circuit in the embodiment of the present invention;
fig. 3 is a schematic block diagram of another specific example of the circuit breaker RTC battery voltage detection circuit in the embodiment of the present invention;
fig. 4 is a circuit diagram of a specific example of the voltage detection circuit in the embodiment of the present invention.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
Examples
The embodiment of the utility model provides a detection circuitry of circuit breaker RTC battery voltage, as shown in FIG. 1, include: the circuit breaker RTC battery voltage sampling circuit is sequentially connected with the control circuit through the voltage detection circuit; the circuit breaker RTC battery voltage sampling circuit provides a voltage sampling signal for the voltage detection circuit; the voltage detection circuit is used for comparing a preset voltage reference signal with a voltage sampling signal, generating a level signal and sending the level signal to the control circuit.
In this embodiment, the control circuit includes: the single chip microcomputer, the DSP and the FPGA are only used as examples, but not limited to these, and the corresponding control circuit is selected according to actual requirements in actual application.
In this embodiment, as shown in fig. 2, the circuit for detecting the RTC battery voltage of the circuit breaker further includes: and the power supply circuit is connected with the voltage detection circuit and is used for providing a power supply for the voltage detection circuit.
In this embodiment, as shown in fig. 3, the circuit for detecting the RTC battery voltage of the circuit breaker further includes: and the alarm module is connected with the control circuit and used for providing an alarm signal for the circuit breaker.
In this embodiment, as shown in fig. 4, the voltage detection circuit includes: the circuit comprises a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4 and a comparator U1A, wherein one end of the first resistor R1 is respectively connected with a positive power supply end and a power supply circuit of the comparator U1A, and the other end of the first resistor R1 is respectively connected with an inverted input end of the comparator U1A and one end of the third resistor R3; one end of the second resistor R2 is connected with one end of the RTC battery voltage sampling circuit of the circuit breaker, and the other end is connected with the positive input end of the comparator U1A; the other end of the third resistor R3 is respectively connected with the other end of the RTC battery voltage sampling circuit of the circuit breaker, the negative power supply end of the comparator U1A and one end of the fourth resistor R4 and is grounded to GND; the other end of the fourth resistor R4 is connected to the output terminal Vout of the comparator.
In this embodiment, as shown in fig. 4, a battery voltage sampling signal Vrtc is led out from the battery terminal of the RTC battery voltage sampling circuit of the circuit breaker; a voltage sampling signal Vrtc of the RTC battery is connected with a positive input end of a comparator U1A through a second resistor R2; the inverting input terminal of the comparator is connected to the reference voltage, which may be a resistor voltage dividing manner, a voltage reference source, etc., for example only, but not limited thereto, and in practical application, a corresponding manner is selected according to practical requirements, for example, a resistor voltage dividing manner is used to input the reference voltage Vref to the inverting input terminal of the comparator; when the RTC battery voltage and the reference voltage change, the output end of the comparator is subjected to level inversion, for example, initial Vrtc > Vref, the comparator outputs high level, and when the Vrtc power is reduced to Vrtc < Vref, the comparator outputs low level. The level change is detected by using a single chip microcomputer, or the level is overturned to drive a special hardware circuit, so that the RTC battery power detection is realized.
The utility model provides a pair of circuit breaker RTC battery voltage's detection circuitry, include: the circuit breaker RTC battery voltage sampling circuit, voltage detection circuit, control circuit acquire voltage sampling signal through circuit breaker RTC battery voltage sampling circuit, and voltage detection circuit will predetermine voltage reference signal and voltage sampling signal and compare, generate level signal to send to control circuit, through alarm module, report to the police to the battery electric quantity, effectively detect the electric quantity of circuit breaker RTC battery.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications can be made without departing from the scope of the invention.
Claims (5)
1. A detection circuit for RTC battery voltage of a circuit breaker is characterized by comprising: the circuit breaker RTC battery voltage sampling circuit is sequentially connected with the control circuit through the voltage detection circuit;
the circuit breaker RTC battery voltage sampling circuit provides a voltage sampling signal for the voltage detection circuit;
the voltage detection circuit is used for comparing a preset voltage reference signal with a voltage sampling signal, generating a level signal and sending the level signal to the control circuit.
2. The circuit breaker RTC battery voltage detection circuit of claim 1, further comprising: and the power supply circuit is connected with the voltage detection circuit and is used for providing a power supply for the voltage detection circuit.
3. The circuit breaker RTC battery voltage detection circuit of claim 2, further comprising: and the alarm module is connected with the control circuit and used for providing an alarm signal for the circuit breaker.
4. The circuit breaker RTC battery voltage detection circuit of claim 3, characterized in that, the voltage detection circuit comprises: a first resistor, a second resistor, a third resistor, a fourth resistor, and a comparator,
one end of the first resistor is respectively connected with the positive power supply end of the comparator and the power supply circuit, and the other end of the first resistor is respectively connected with the reverse input end of the comparator and one end of the third resistor;
one end of the second resistor is connected with one end of the RTC battery voltage sampling circuit of the circuit breaker, and the other end of the second resistor is connected with the positive input end of the comparator;
the other end of the third resistor is respectively connected with the other end of the RTC battery voltage sampling circuit of the circuit breaker, the negative power supply end of the comparator and one end of the fourth resistor and is grounded;
the other end of the fourth resistor is connected with the output end of the comparator.
5. The circuit breaker RTC battery voltage detection circuit of claim 4, characterized in that, the control circuit comprises: singlechip, DSP, FPGA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120684490.7U CN214539769U (en) | 2021-04-02 | 2021-04-02 | Circuit breaker RTC battery voltage detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120684490.7U CN214539769U (en) | 2021-04-02 | 2021-04-02 | Circuit breaker RTC battery voltage detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214539769U true CN214539769U (en) | 2021-10-29 |
Family
ID=78272139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120684490.7U Active CN214539769U (en) | 2021-04-02 | 2021-04-02 | Circuit breaker RTC battery voltage detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214539769U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116184008A (en) * | 2022-12-26 | 2023-05-30 | 无锡宏创盛安科技有限公司 | An RTC battery voltage automatic detection alarm circuit |
-
2021
- 2021-04-02 CN CN202120684490.7U patent/CN214539769U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116184008A (en) * | 2022-12-26 | 2023-05-30 | 无锡宏创盛安科技有限公司 | An RTC battery voltage automatic detection alarm circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104880599B (en) | Power down warning circuit and Medical Devices with it | |
| US20230096780A1 (en) | Detecting circuit and a detecting system of a back-up energy-storing system and related detecting method thereof | |
| CN214539769U (en) | Circuit breaker RTC battery voltage detection circuit | |
| CN110888168B (en) | Interface detection circuitry charges, intelligent wearing equipment and charging system | |
| CN104880174A (en) | Laser digital display type level testing instrument | |
| KR101068930B1 (en) | Circuits and methods for measuring the absence of batteries | |
| CN112639497A (en) | Battery detection circuit, battery detection method, battery, electronic device and storage medium | |
| CN214587235U (en) | Intelligent electronic nanny system based on Bluetooth technology | |
| CN211426729U (en) | Fire detection alarm electric quantity detection circuit and fire detection alarm | |
| CN208888172U (en) | A kind of TDS detection circuit and electrical equipment | |
| CN217981764U (en) | Monitoring device and electronic equipment | |
| CN217787224U (en) | Self-adaptive current detection alarm output device | |
| CN217133325U (en) | Battery module detection circuit and device | |
| CN221614950U (en) | Comparator control output circuit | |
| CN216117947U (en) | Storage battery sensor with alternating current injection method detection circuit | |
| CN214793533U (en) | Temperature test system for wireless network mine multi-loop combined equipment | |
| CN220525778U (en) | Environment detection circuit, device and battery pack | |
| CN214896916U (en) | Stand alone type alarm box with environmental monitoring system | |
| KR100230014B1 (en) | Device for detecting abnormal condition of automobile-electric circuit | |
| CN220438439U (en) | Contactor state monitoring system | |
| CN210803683U (en) | Monitoring system based on miniaturized UPS power | |
| CN223139806U (en) | Power supply abnormality detection circuit and electric energy meter | |
| CN216411398U (en) | Vehicle quiescent current detection device | |
| CN223038037U (en) | Novel current sampling circuit | |
| CN205210288U (en) | Detection system for lamp head anomalies |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |