CN212433934U - Undervoltage gauge outfit alarm circuit - Google Patents
Undervoltage gauge outfit alarm circuit Download PDFInfo
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- CN212433934U CN212433934U CN202021462546.6U CN202021462546U CN212433934U CN 212433934 U CN212433934 U CN 212433934U CN 202021462546 U CN202021462546 U CN 202021462546U CN 212433934 U CN212433934 U CN 212433934U
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Abstract
The utility model relates to an under-voltage gauge outfit warning circuit, including singlechip, power supply circuit, charactron circuit, voltage detection circuit, alarm drive circuit, outside alternating current power supply is connected to power supply circuit's input, the input of singlechip and alarm drive circuit's input are connected respectively to power supply circuit's output, outside alternating current power supply's live wire L is connected to voltage detection circuit's input, and the input of singlechip is connected to voltage detection circuit's output, the input of charactron circuit and alarm drive circuit's input are connected respectively to the output of singlechip. The utility model discloses under-voltage gauge outfit warning circuit adopts the singlechip as control processing unit, has job stabilization, the timely advantage of reporting to the police, can not take place the alert condition of wrong report, and voltage detection circuit components and parts are few moreover, connect simple, low in production cost.
Description
Technical Field
The utility model relates to a circuit especially relates to an under-voltage gauge outfit alarm circuit.
Background
With the progress of science and technology and the development of economic society, functions of the existing electronic power products are continuously optimized and perfected, for example, under-voltage detection for power supply voltage of the electronic power products is carried out, the under-voltage is that the working voltage provided by a power grid for power utilization equipment is far lower than the rated working voltage of the power utilization equipment, and the under-voltage can cause the power utilization equipment to be incapable of working normally. The existing undervoltage meter head circuit has the defects of complexity, multiple components, high production cost, unreliable work of an undervoltage detection circuit and an alarm driving circuit, untimely alarm and inaccurate voltage detection.
Disclosure of Invention
In view of this, the utility model aims at providing a circuit is simple, with low costs, reliable operation, the timely undervoltage gauge outfit warning circuit of warning.
In order to achieve the above object, the utility model discloses a such undervoltage meter head alarm circuit, including singlechip, power supply circuit, charactron circuit, voltage detection circuit, warning drive circuit, external alternating current power supply is connected to power supply circuit's input, power supply circuit's output connects the input of singlechip and the input of warning drive circuit respectively, voltage detection circuit's input is connected external alternating current power supply's live wire L, and voltage detection circuit's output is connected the input of singlechip, the output of singlechip connects the input of charactron circuit and the input of warning drive circuit respectively, voltage detection circuit includes resistance R2-R5, electric capacity C2-C3, diode D3, resistance R4, diode D3, resistance R5, resistance R3 establish ties in proper order, the one end of resistance R2 and the one end of electric capacity C2 connect the one end of resistance R3 respectively, the other end of resistance R2 and the other end of electric capacity C2 all ground connection, the other end of resistance R3 is connected to the one end of electric capacity C3, and the other end of electric capacity C3 is ground connection, the live wire L of outside alternating current power supply is connected to the one end of resistance R4, the input of singlechip is connected to the other end of resistance R3.
The working principle of the undervoltage gauge head alarm circuit is as follows: the power supply circuit converts an external 220V alternating current power supply into direct current working voltage required by the single chip microcomputer and the alarm driving circuit, the nixie tube circuit displays an actual voltage value, the voltage detection circuit detects a voltage signal on the live wire L and transmits the voltage signal to the single chip microcomputer, and when the voltage detection circuit detects that the actual voltage value on the live wire L is smaller than 200V, the single chip microcomputer outputs a control signal to the alarm driving circuit to enable the alarm driving circuit to work, so that alarm response when an undervoltage fault occurs in a loop is completed. The utility model discloses undervoltage gauge outfit warning circuit adopts the singlechip as control processing unit, has job stabilization, the timely advantage of reporting to the police, can not take place the alert condition of wrong report, and voltage detection circuit components and parts are few moreover, connect simply, the production of being convenient for.
The utility model discloses a power supply circuit includes resistance R6-R7, electric capacity C4-C5, electrolytic capacitor C1, rectifier bridge BR1, zener diode DZ1, electric capacity C5 is parallelly connected with resistance R6, the live wire L of outside alternating current power supply is connected to resistance R6's one end, rectifier bridge BR 1's input is the other end of connecting resistance R6 and the zero line N of outside alternating current power supply respectively, rectifier bridge BR 1's output is connected to resistance R7's one end, the negative pole of zener diode DZ1, the positive pole of electrolytic capacitor C1, the other end of electric capacity C4 is connected resistance R7 respectively, the positive pole of zener diode DZ1, the negative pole of electrolytic capacitor C1, the other end of electric capacity C4 all ground connection, the one end of resistance R7 outputs the direct current voltage of +5V, the other end of resistance R7 outputs direct current voltage + VDD.
The power circuit sequentially adopts resistance-capacitance voltage reduction, rectifier bridge rectification, voltage stabilization of a voltage stabilizing diode and capacitance filtering to obtain stable +5V direct current voltage for driving the alarm driving circuit and + VDD direct current voltage for supplying power to the single chip microcomputer. The power supply circuit needs a small number of components and parts and is low in production cost.
The utility model discloses further set up to alarm drive circuit and include resistance R16, triode Q1, bee calling organ BP1, the output of singlechip is connected to resistance R16's one end, and triode Q1's base is connected to resistance R16's the other end, and triode Q1's projecting pole ground connection, bee calling organ BP 1's one end is connected to triode Q1's collecting electrode, bee calling organ BP 1's the other end is connected + 5V's direct current voltage.
When the single chip microcomputer sends a driving signal to the alarm driving circuit, the base electrode of the triode Q1 is electrified, the triode Q1 is conducted, the buzzer BP1 is electrified to work, and an alarm is sent.
This practicality further sets up the model that sets up to the singlechip and is FC 153.
The single chip microcomputer of the type FC153 has the advantages of low power consumption and high response speed, and the quantity of pins of the single chip microcomputer meets the requirements of the undervoltage meter head alarm circuit.
Drawings
Fig. 1 is a schematic block diagram of an embodiment of the present invention.
Fig. 2 is a schematic diagram of a power circuit according to an embodiment of the present invention.
Fig. 3 is the schematic diagram of the driving circuit for detecting voltage and alarming of the embodiment of the present invention.
Fig. 4 is a schematic diagram of a nixie tube circuit according to an embodiment of the present invention.
Detailed Description
As shown in fig. 1-4, the utility model relates to an under-voltage meter head alarm circuit, which comprises a single chip microcomputer, a power circuit, a nixie tube circuit, a voltage detection circuit and an alarm driving circuit, wherein the model of the single chip microcomputer is FC153, the input end of the power circuit is connected with an external 220V alternating current power supply, the output end of the power circuit is respectively connected with the input end of the single chip microcomputer and the input end of the alarm driving circuit, the input end of the voltage detection circuit is connected with a live wire L of the external alternating current power supply, the output end of the voltage detection circuit is connected with the input end of the single chip microcomputer, the output end of the single chip microcomputer is respectively connected with the input,
the voltage detection circuit comprises resistors R2-R5, capacitors C2-C3 and a diode D3, wherein the resistor R4, the diode D3, the resistor R5 and the resistor R3 are sequentially connected in series, one end of a resistor R2 and one end of the capacitor C2 are respectively connected with one end of a resistor R3, the other end of the resistor R2 and the other end of a capacitor C2 are grounded, one end of the capacitor C3 is connected with the other end of the resistor R3, the other end of the capacitor C3 is grounded, one end of the resistor R4 is connected with a live wire L of an external alternating current power supply, and the other end of the resistor R3 is connected with the input end of the single chip microcomputer,
the power supply circuit comprises resistors R6-R7, capacitors C4-C5, an electrolytic capacitor C1, a rectifier bridge BR1 and a voltage stabilizing diode DZ1, wherein the capacitor C5 is connected with the resistor R6 in parallel, one end of the resistor R6 is connected with a live wire L of an external alternating current power supply, the input end of the rectifier bridge BR1 is respectively connected with the other end of the resistor R6 and a zero line N of the external alternating current power supply, one end of the resistor R7 is connected with the output end of the rectifier bridge BR1, the cathode of the voltage stabilizing diode DZ1, the anode of the electrolytic capacitor C1 and one end of the capacitor C4 are respectively connected with the other end of the resistor R7, the anode of the voltage stabilizing diode DZ1, the cathode of the electrolytic capacitor C1 and the other end of the capacitor C4 are all grounded, one end of the resistor R7 outputs a direct current voltage of +5V, and the other end of the resistor R7 outputs,
the alarm driving circuit comprises a resistor R16, a triode Q1 and a buzzer BP1, one end of the resistor R16 is connected with the output end of the single chip microcomputer, the other end of the resistor R16 is connected with the base electrode of the triode Q1, the emitting electrode of the triode Q1 is grounded, the collecting electrode of the triode Q1 is connected with one end of the buzzer BP1, and the other end of the buzzer BP1 is connected with +5V direct-current voltage.
According to the embodiment, the power circuit converts an external 220V alternating current power supply into direct current working voltage (+ VDD direct current voltage and +5V direct current voltage) required by the single chip microcomputer and the alarm driving circuit, the nixie tube circuit displays an actual voltage value, the voltage detection circuit detects a voltage signal on the fire wire L and transmits the voltage signal to the single chip microcomputer, when the voltage detection circuit detects that the actual voltage value on the fire wire L is smaller than 200V, the single chip microcomputer outputs a control signal to the alarm driving circuit to enable the alarm driving circuit to work, the buzzer is electrified to give an audible alarm, and alarm response when an undervoltage fault occurs in a loop is completed.
Claims (4)
1. The utility model provides an under-voltage gauge outfit warning circuit, includes singlechip, power supply circuit, charactron circuit, voltage detection circuit, alarm drive circuit, outside alternating current power supply is connected to power supply circuit's input, the input of singlechip and alarm drive circuit's input are connected respectively to power supply circuit's output, outside alternating current power supply's live wire L is connected to voltage detection circuit's input, and the input of singlechip is connected to voltage detection circuit's output, the input of charactron circuit and alarm drive circuit's input are connected respectively to the output of singlechip, its characterized in that: the voltage detection circuit comprises resistors R2-R5, capacitors C2-C3 and a diode D3, wherein the resistor R4, the diode D3, the resistor R5 and the resistor R3 are sequentially connected in series, one end of the resistor R2 and one end of the capacitor C2 are respectively connected with one end of the resistor R3, the other end of the resistor R2 and the other end of the capacitor C2 are grounded, one end of the capacitor C3 is connected with the other end of the resistor R3, the other end of the capacitor C3 is grounded, one end of the resistor R4 is connected with a live wire L of an external alternating current power supply, and the other end of the resistor R3 is connected with the input end of the single chip microcomputer.
2. The undervoltage header alarm circuit of claim 1, wherein: the power supply circuit comprises resistors R6-R7, capacitors C4-C5, an electrolytic capacitor C1, a rectifier bridge BR1 and a voltage stabilizing diode DZ1, wherein the capacitor C5 is connected with the resistor R6 in parallel, one end of the resistor R6 is connected with a live wire L of an external alternating current power supply, the input end of the rectifier bridge BR1 is respectively connected with the other end of the resistor R6 and a zero line N of the external alternating current power supply, one end of the resistor R7 is connected with the output end of the rectifier bridge BR1, the cathode of the voltage stabilizing diode DZ1, the anode of the electrolytic capacitor C1 and one end of the capacitor C4 are respectively connected with the other end of the resistor R7, the anode of the voltage stabilizing diode DZ1, the cathode of the electrolytic capacitor C1 and the other end of the capacitor C4 are all grounded, one end of the resistor R7 outputs a direct current voltage of +5V, and the other end of the resistor R7 outputs.
3. The undervoltage header alarm circuit of claim 2, wherein: the alarm driving circuit comprises a resistor R16, a triode Q1 and a buzzer BP1, one end of the resistor R16 is connected with the output end of the single chip microcomputer, the other end of the resistor R16 is connected with the base electrode of the triode Q1, the emitting electrode of the triode Q1 is grounded, the collecting electrode of the triode Q1 is connected with one end of the buzzer BP1, and the other end of the buzzer BP1 is connected with +5V direct-current voltage.
4. The undervoltage meter head alarm circuit according to claim 1, 2 or 3, characterized in that: the model of the single chip microcomputer is FC 153.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021462546.6U CN212433934U (en) | 2020-07-22 | 2020-07-22 | Undervoltage gauge outfit alarm circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021462546.6U CN212433934U (en) | 2020-07-22 | 2020-07-22 | Undervoltage gauge outfit alarm circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212433934U true CN212433934U (en) | 2021-01-29 |
Family
ID=74279313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021462546.6U Expired - Fee Related CN212433934U (en) | 2020-07-22 | 2020-07-22 | Undervoltage gauge outfit alarm circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212433934U (en) |
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2020
- 2020-07-22 CN CN202021462546.6U patent/CN212433934U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210129 Termination date: 20210722 |
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| CF01 | Termination of patent right due to non-payment of annual fee |