CN213457095U - Automatic voltage jump detection circuit and electronic device - Google Patents
Automatic voltage jump detection circuit and electronic device Download PDFInfo
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- CN213457095U CN213457095U CN202022253044.9U CN202022253044U CN213457095U CN 213457095 U CN213457095 U CN 213457095U CN 202022253044 U CN202022253044 U CN 202022253044U CN 213457095 U CN213457095 U CN 213457095U
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Abstract
The utility model relates to an automatic detect voltage jump circuit and electron device, include: the device comprises a detection circuit, a control circuit, a switch circuit and an alarm indicating circuit; the input end of the detection circuit is connected with the detection signal input port, the output end of the detection circuit is connected with the detection input end of the control circuit, the control output end of the control circuit is connected with the switch circuit, and the alarm indicating circuit is connected with the switch circuit; when the device to be detected is connected to the detection signal input port, the detection circuit detects a voltage signal of the device to be detected and outputs a detection signal to the control circuit; when the control circuit judges that the voltage of the device to be detected is within a preset voltage range according to the detection signal, the control circuit outputs a control signal to the switching circuit to control the switching circuit to be conducted; the alarm indicating circuit outputs an alarm indicating signal when the switch circuit is switched on. The utility model discloses can the jump of automatic monitoring device to be tested voltage, but greatly reduced human cost, detection efficiency is high, effectively improves the validity of test.
Description
Technical Field
The utility model relates to a voltage monitoring's technical field, more specifically say, relate to an automated inspection voltage jump circuit and electron device.
Background
With the development of electronic and communication technologies and the emergence of a large number of network devices, electrical products and the like, the living conditions of people are improved, the requirements on the electrical performance of the products are higher and higher, the products are interfered by lightning stroke, static electricity, rapid pulse groups, conduction interference resistance, radiation interference resistance and the like, the output voltage is required not to be powered down, and the terminal products cannot be restarted. Because the end product is restarted, the system loses data and needs to re-set product parameters, which brings inconvenience to consumers.
Because the oscilloscope is greatly influenced during the interference tests such as lightning stroke, static electricity, rapid pulse group, conduction anti-interference, radiation anti-interference and the like, the phenomenon of voltage power failure cannot be accurately detected due to screen waste or a plurality of interference waveforms on the display screen, a large amount of manpower is needed to detect and judge the normality and the abnormality of each waveform in a lightning fight triggering mode, great troubles are brought to the verification and the test of manufacturers, and the labor cost and the test difficulty are increased.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide an automated inspection voltage jump circuit and electron device.
The utility model provides a technical scheme that its technical problem adopted is: an automatic detection voltage jump circuit is constructed, comprising: the device comprises a detection circuit, a control circuit, a switch circuit and an alarm indicating circuit;
the input end of the detection circuit is connected with a detection signal input port, the output end of the detection circuit is connected with the detection input end of the control circuit, the control output end of the control circuit is connected with the switch circuit, and the alarm indication circuit is connected with the switch circuit;
when a device to be detected is connected to the detection signal input port, the detection circuit detects a voltage signal of the device to be detected and outputs a detection signal to the control circuit; when the control circuit judges that the voltage of the device to be detected is within a preset voltage range according to the detection signal, the control circuit outputs a control signal to the switch circuit to control the switch circuit to be conducted; and the alarm indicating circuit outputs an alarm indicating signal when the switching circuit is switched on.
Preferably, the alarm indication circuit comprises: a power failure indicating circuit and an alarm circuit;
the power failure indicating circuit is connected with the switching circuit and outputs a power failure indicating signal when the switching circuit is switched on;
the alarm circuit is connected with the switch circuit and outputs an alarm signal when the switch circuit is switched on.
Preferably, the method further comprises the following steps: the first filter circuit and the filter circuit are connected with the detection signal input port and used for filtering the voltage signal when the detection circuit is connected to the voltage signal of the device to be detected.
Preferably, the method further comprises the following steps: and the detection indicating circuit is connected with the detection signal input port and outputs detection indication when the detection circuit is connected to the voltage signal of the device to be detected.
Preferably, the method further comprises the following steps: and the second filter circuit is connected with the detection input end of the control circuit and is used for filtering the detection signal.
Preferably, the method further comprises the following steps: and the self-checking circuit is arranged at the switching circuit and the power supply input end and is used for executing self-checking when the power supply is started.
Preferably, the self-test circuit includes: a self-checking switch;
the input end of the self-checking switch is connected with the power supply input end, and the output end of the self-checking switch is connected with the switch circuit.
Preferably, the self-test circuit further comprises: and the self-checking indicating circuit is connected with the output end of the self-checking switch and is used for outputting a self-checking indicating signal during self-checking.
Preferably, the self-test circuit further comprises: and the third filter circuit is connected with the output end of the self-checking switch and is used for filtering during self-checking.
The utility model also provides an electronic device, including above automated inspection voltage jump circuit.
Implement the utility model discloses an automated inspection voltage jump circuit and electron device has following beneficial effect: the method comprises the following steps: the device comprises a detection circuit, a control circuit, a switch circuit and an alarm indicating circuit; the input end of the detection circuit is connected with the detection signal input port, the output end of the detection circuit is connected with the detection input end of the control circuit, the control output end of the control circuit is connected with the switch circuit, and the alarm indicating circuit is connected with the switch circuit; when the device to be detected is connected to the detection signal input port, the detection circuit detects a voltage signal of the device to be detected and outputs a detection signal to the control circuit; when the control circuit judges that the voltage of the device to be detected is within a preset voltage range according to the detection signal, the control circuit outputs a control signal to the switching circuit to control the switching circuit to be conducted; the alarm indicating circuit outputs an alarm indicating signal when the switch circuit is switched on. The utility model discloses can the jump of automatic monitoring device to be tested voltage, but greatly reduced human cost, detection efficiency is high, effectively improves the validity of test.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a schematic structural diagram of an automatic voltage jump detection circuit according to an embodiment of the present invention;
fig. 2 and fig. 3 are circuit diagrams of the automatic voltage jump detection circuit according to an embodiment of the present invention.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
In order to solve at present because the thunderbolt, static, quick pulse crowd, to oscilloscope influence very greatly during interference tests such as conducted interference and radiation interference, lead to can not accurately detecting voltage and fall the electricity phenomenon, need a large amount of manpower single-points to trigger the problem that detects, the utility model provides an automatic detection voltage jump circuit, this circuit can the automatic identification examination product's that awaits measuring output voltage scope, and whether the automatic judgement examination product falls the electricity, the voltage step-down, perhaps the voltage is high etc to the examination product that awaits measuring falls the electricity, the voltage step-down, perhaps gives corresponding suggestion when the voltage uprises, greatly reduced human cost still can improve the validity and the efficiency of test simultaneously, the test is accurate.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an optional embodiment of each embodiment of the automatic detection voltage jump circuit provided by the present invention.
As shown in fig. 1, in this embodiment, the automatic detection voltage jump circuit may include: a detection circuit 11, a control circuit 12, a switch circuit 13, and an alarm indication circuit 14.
The input end of the detection circuit 11 is connected with the detection signal input port, the output end of the detection circuit 11 is connected with the detection input end of the control circuit 12, the control output end of the control circuit 12 is connected with the switch circuit 13, and the alarm indication circuit 14 is connected with the switch circuit 13.
When the device to be detected is connected to the detection signal input port, the detection circuit 11 detects a voltage signal of the device to be detected and outputs a detection signal to the control circuit 12; when the control circuit 12 judges that the voltage of the device to be detected is within the preset voltage range according to the detection signal, the control circuit outputs a control signal to the switch circuit 13 to control the switch circuit 13 to be conducted; the alarm indication circuit 14 outputs an alarm indication signal when the switching circuit 13 is turned on. Specifically, when the device to be detected is connected to the detection signal input port, the detection circuit 11 detects a voltage signal of the device to be detected, and outputs a corresponding detection signal to the control circuit 12, the control circuit 12 judges whether the voltage of the device to be detected is within a preset voltage range according to the detection signal, and if the voltage of the device to be detected is within the preset voltage range, the voltage of the device to be detected is judged to be powered off, be lowered or be raised, at this time, the control circuit 12 controls the switch circuit 13 to be switched on, and after the switch circuit 13 is switched on, the alarm indication circuit 14 receives the voltage and outputs a corresponding alarm indication signal, so that the voltage power-off automatic detection is achieved.
Optionally, in some embodiments, the alarm indication circuit 14 includes: a power down indication circuit 141 and an alarm circuit 142. The power-down indication circuit 141 is connected to the switching circuit 13, and outputs a power-down indication signal when the switching circuit 13 is turned on; the alarm circuit 142 is connected to the switch circuit 13 and outputs an alarm signal when the switch circuit 13 is turned on.
In some embodiments, the power down indication circuit 141 may be an LED light indication circuit. Of course, it is understood that in other embodiments, the power down indication circuit 141 may also be a display indication circuit, wherein the display indication circuit may include a display screen, and the display screen used includes, but is not limited to, an LCD display screen, an LED display screen, an OLED display screen, a flexible display screen, and the like.
In some embodiments, the alarm circuit 142 includes, but is not limited to, a buzzer, a horn, and the like.
Further, as shown in fig. 1, the automatic detection voltage jump circuit further includes: the first filter circuit 15 and the filter circuit 20 are connected with the detection signal input port, and are used for filtering the voltage signal when the detection circuit 11 is connected with the voltage signal of the device to be detected. In some embodiments, the first filter circuit 15 may be implemented by using an RC filter circuit composed of a capacitor and a resistor, or in other embodiments, may also be implemented by using a capacitor. The filtering circuit 20 is mainly used for filtering an external interference signal at the input port of the detection signal, so as to improve the stability and reliability of the input signal. The filtering circuit 20 may be implemented by an inductor.
Further, as shown in fig. 1, the automatic detection voltage jump circuit further includes: and a detection indication circuit 17 connected to the detection signal input port and outputting a detection indication when the detection circuit 11 receives a voltage signal of the device to be detected. In some embodiments, the detection indication circuit 17 may be an LED light indication circuit. Of course, it is understood that in other embodiments, the detection indication circuit 17 may also be a display indication circuit, wherein the display indication circuit may include a display screen, and the display screen used includes, but is not limited to, an LCD display screen, an LED display screen, an OLED display screen, a flexible display screen, and the like.
Further, as shown in fig. 1, the automatic detection voltage jump circuit further includes: and a second filter circuit 16 connected to the detection input terminal of the control circuit 12 and filtering the detection signal. In some embodiments, the second filter circuit 16 may be implemented by an RC filter circuit composed of a capacitor and a resistor, or in other embodiments, may also be implemented by a capacitor.
Further, as shown in fig. 1, the automatic detection voltage jump circuit further includes: and a self-test circuit 18 arranged at the switching circuit 13 and the power supply input terminal for performing self-test at the time of start-up.
Optionally, in this embodiment, the self-test circuit 18 includes: a self-test switch 181. The input end of the self-checking switch 181 is connected to the power supply input end, and the output end of the self-checking switch 181 is connected to the switch circuit 13.
Further, in this embodiment, the self-test circuit 18 further includes: and a self-checking indicating circuit 182 connected to the output terminal of the self-checking switch 181 and used for outputting a self-checking indicating signal during self-checking.
In some embodiments, the self-test indication circuit 182 may be an LED light indication circuit. Of course, it is understood that in other embodiments, the self-checking indication circuit 182 may also be a display indication circuit, wherein the display indication circuit may include a display screen, and the display screen used includes, but is not limited to, an LCD display screen, an LED display screen, an OLED display screen, a flexible display screen, and the like.
Further, in this embodiment, the self-test circuit 18 further includes: and a third filter circuit 183 connected to the output terminal of the self-test switch 181, for filtering during self-test. In some embodiments, the third filter circuit 183 may be implemented by an RC filter circuit composed of a capacitor and a resistor, or may be implemented by a capacitor in other embodiments.
Specifically, the automatic voltage jump detection circuit can be used for detecting whether the output voltage of the to-be-detected product is powered down or not. When the automatic detection voltage jump circuit is normally powered on, the self-detection switch 181 is started to perform self-detection, the control circuit 12 simultaneously controls the switch circuit 13 to be switched on, the alarm circuit 142 outputs a corresponding self-detection signal, and the self-detection indicating circuit 182 outputs a self-detection mode indication. After the self-checking is completed, the detection circuit 11 automatically reads the voltage signal of the to-be-tested object, and outputs the detection signal to the control circuit 12, the control circuit 12 compares the detection signal with the internal preset voltage range, if the voltage of the detection signal is within the preset voltage range, the output voltage of the to-be-tested object is judged to be powered down, and then the control signal is output to the switch circuit 13, the switch circuit 13 is controlled to be switched on, the alarm circuit 142 and the power down indication circuit 141 simultaneously output the alarm signal and the power down indication signal, so as to indicate that the output voltage of the to-be-tested object is powered down, the voltage becomes lower, or the voltage becomes higher.
Referring to fig. 2 and 3, fig. 2 and 3 are circuit diagrams of an alternative embodiment of the present invention.
As shown in fig. 2 and 3, in this embodiment, the DETECTION signal input port is DETECTION +, and the first filter circuit 15 includes: a fourth capacitor C104, a third capacitor C103, and a first zener diode ZD 1. The filtering circuit 20 includes: an inductance LF 101. The detection instruction circuit 17 includes: seventh resistor R107, second LED lamp (blue) LED 102. The detection circuit 11 includes: and a sixth resistor R106. The control circuit 12 includes: the control chip U201, the fifth capacitor C105 and the sixth capacitor C106. The second filter circuit 16 includes: a ninth resistor R109, a tenth resistor R110 and a seventh capacitor C107.
In this embodiment, the self-check switch 181 includes SW 101. The self-test indicating circuit 182 includes: a second resistor R102 and a first LED lamp LED101 (green). The third filter circuit 183 includes: a first capacitor C101 and a second capacitor C102. The switching circuit 13 includes: MOS pipe Q101, resistance R105. The power down indication circuit 141 includes: a third resistor R103 and a third LED lamp LED103 (red). The alarm circuit 142 includes: a fourth resistor R104 and a buzzer SP 101.
Further, the automatic detection voltage jump circuit may further include: and a programming input circuit 19 composed of a second voltage regulator tube ZD102 and an eighth resistor R108. The programming input circuit 19 can be used for programming the related programs to the control chip U201 on-line, so as to dynamically adjust the preset voltage range.
The first end of the inductor LF101 is connected with the positive end of the detection input port, the second end of the inductor LF101 is connected with the negative end of the detection input port, the third end of the inductor LF101 is connected with the cathode of the first voltage regulator tube ZD1, the fourth end of the inductor LF101 is grounded, the anode of the first voltage regulator tube ZD1 is grounded, and the third capacitor C103 and the fourth capacitor C104 are sequentially connected with the first voltage regulator tube ZD1 in parallel. A first end of the seventh resistor R107 is connected to the detection input port, a second end of the seventh resistor R107 is connected to the anode of the second LED lamp LED102, and the cathode of the second LED lamp LED102 is grounded.
A first end of the sixth resistor R106 is connected to the fifth pin of the control chip U201, and a second end of the sixth resistor R106 is connected to the detection input port.
The cathode of the second voltage regulator ZD102 is connected to the programming input port (CC1), and the anode of the second voltage regulator ZD102 is grounded. A first end of the eighth resistor R108 is connected to the cathode of the second voltage regulator ZD102 and the programming input port, and a second end of the eighth resistor R108 is connected to the fourth pin of the control chip U201.
A first end of the ninth resistor R109 is connected with the fifth pin of the control chip U201, and a second end of the ninth resistor R109 is grounded; the tenth resistor R110 and the seventh capacitor C107 are in turn connected in parallel with the ninth resistor R109.
The sixth pin and the third pin of the self-checking switch 181 are short-circuited and then connected to a power supply input end (VCC +), and the fifth pin and the second pin of the self-checking switch 181 are short-circuited and then connected to the drain of the MOS transistor Q101 and connected to the tenth pin of the control chip U201 and the second pin of the control chip U201 through the first resistor R101 and the eleventh resistor R111, respectively. The tenth pin of the control chip U201 is also grounded through a fifth capacitor C105, and a sixth capacitor C106 is connected in parallel with the fifth capacitor C105.
A first end of the second resistor R102 is connected to the fifth pin of the self-test switch 181, a second end of the second resistor R102 is connected to the anode of the first LED lamp LED101, and the cathode of the first LED lamp LED101 is grounded. A first end of the first capacitor C101 is connected to the first end of the second resistor R102 and the fifth pin of the self-test switch 181, and a second end of the first capacitor C101 is grounded; the second capacitor C102 is connected in parallel with the first capacitor C101.
The gate of the MOS transistor Q101 is connected to the second pin of the control chip U201 through the fifth resistor R105, and the source of the MOS transistor Q101 is connected to the first end of the third resistor R103 and the first end of the fourth resistor R104. A second end of the third resistor R103 is connected to an anode of the third LED lamp LED103, and a cathode of the third LED lamp LED103 is grounded. The second end of the fourth resistor R104 is connected with the first end of the buzzer, and the second end of the buzzer is grounded.
As shown in fig. 2 and fig. 3, after the tester is normally powered on, the detection signal input terminal of the automatic detection voltage jump circuit is connected to the tested object, the self-checking switch 181 is turned on, the automatic detection voltage jump circuit performs a self-checking mode, the MOS tube Q101 is turned on, the buzzer makes a short sound, the third LED lamp LED103 (red indicator lamp) flashes, and after being turned off, the sixth resistor R106 automatically reads the voltage signal of the tested object and transmits the voltage signal to the control chip U201, the control chip U201 compares the voltage in the detection signal with a preset voltage range, when the voltage in the detection signal is within the preset voltage range, it is determined that the output voltage of the tested object is powered off, the control chip U201 controls the MOS tube Q101 to be turned on, the supply voltage (VCC +) is transmitted to the source through the drain of the MOS tube Q101 and transmitted to the buzzer and the third LED lamp LED103, so that the buzzer alarms automatically, and the third LED lamp LED103 flashes all the time, thereby achieving a power down, voltage down, or voltage up monitoring indication.
It is understood that in this embodiment, the color of the LED lamp is adjustable, as determined by design requirements. The MOS transistor Q101 can also be replaced by a PMOS transistor.
The utility model also provides an electron device, wherein, this electron device can include the embodiment of the utility model discloses the automated inspection voltage jump circuit.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and implement the present invention accordingly, which can not limit the protection scope of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention shall fall within the scope of the claims of the present invention. It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.
Claims (10)
1. An automatic detection voltage jump circuit, comprising: the device comprises a detection circuit, a control circuit, a switch circuit and an alarm indicating circuit;
the input end of the detection circuit is connected with a detection signal input port, the output end of the detection circuit is connected with the detection input end of the control circuit, the control output end of the control circuit is connected with the switch circuit, and the alarm indication circuit is connected with the switch circuit;
when a device to be detected is connected to the detection signal input port, the detection circuit detects a voltage signal of the device to be detected and outputs a detection signal to the control circuit; when the control circuit judges that the voltage of the device to be detected is within a preset voltage range according to the detection signal, the control circuit outputs a control signal to the switch circuit to control the switch circuit to be conducted; and the alarm indicating circuit outputs an alarm indicating signal when the switching circuit is switched on.
2. The automatic detection voltage jump circuit of claim 1, wherein the alarm indication circuit comprises: a power failure indicating circuit and an alarm circuit;
the power failure indicating circuit is connected with the switching circuit and outputs a power failure indicating signal when the switching circuit is switched on;
the alarm circuit is connected with the switch circuit and outputs an alarm signal when the switch circuit is switched on.
3. The automatic detection voltage jump circuit of claim 1, further comprising: the first filter circuit and the filter circuit are connected with the detection signal input port and used for filtering the voltage signal when the detection circuit is connected to the voltage signal of the device to be detected.
4. The automatic detection voltage jump circuit of claim 1, further comprising: and the detection indicating circuit is connected with the detection signal input port and outputs detection indication when the detection circuit is connected to the voltage signal of the device to be detected.
5. The automatic detection voltage jump circuit of claim 1, further comprising: and the second filter circuit is connected with the detection input end of the control circuit and is used for filtering the detection signal.
6. The automatic detection voltage jump circuit of claim 1, further comprising: and the self-checking circuit is arranged at the switching circuit and the power supply input end and is used for executing self-checking when the power supply is started.
7. The automatic detection voltage jump circuit of claim 6, wherein the self-test circuit comprises: a self-checking switch;
the input end of the self-checking switch is connected with the power supply input end, and the output end of the self-checking switch is connected with the switch circuit.
8. The automatic detection voltage jump circuit of claim 7, wherein the self-test circuit further comprises: and the self-checking indicating circuit is connected with the output end of the self-checking switch and is used for outputting a self-checking indicating signal during self-checking.
9. The automatic detection voltage jump circuit of claim 7, wherein the self-test circuit further comprises: and the third filter circuit is connected with the output end of the self-checking switch and is used for filtering during self-checking.
10. An electronic device comprising the automatic detection voltage jump circuit of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022253044.9U CN213457095U (en) | 2020-10-10 | 2020-10-10 | Automatic voltage jump detection circuit and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022253044.9U CN213457095U (en) | 2020-10-10 | 2020-10-10 | Automatic voltage jump detection circuit and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213457095U true CN213457095U (en) | 2021-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022253044.9U Active CN213457095U (en) | 2020-10-10 | 2020-10-10 | Automatic voltage jump detection circuit and electronic device |
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|---|---|
| CN (1) | CN213457095U (en) |
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- 2020-10-10 CN CN202022253044.9U patent/CN213457095U/en active Active
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