CN217278841U - Power failure detection circuit, device and equipment for kilomega industrial switch - Google Patents
Power failure detection circuit, device and equipment for kilomega industrial switch Download PDFInfo
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- CN217278841U CN217278841U CN202220660739.5U CN202220660739U CN217278841U CN 217278841 U CN217278841 U CN 217278841U CN 202220660739 U CN202220660739 U CN 202220660739U CN 217278841 U CN217278841 U CN 217278841U
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Abstract
The utility model discloses a power failure detection circuit, a power failure detection device and power failure detection equipment for a kilomega industrial-grade switch, wherein the power failure detection circuit comprises a filtering module, a voltage reduction module, a conversion module and an early warning module, the filtering module is connected with the voltage reduction module, the voltage reduction module is connected with the conversion module, and the conversion module is connected with the early warning module; the filtering module is used for receiving a voltage signal of a commercial power input end of the uninterruptible power supply, filtering an interference signal in the voltage signal and obtaining a filtering voltage signal; the voltage reduction module is used for carrying out voltage reduction processing on the filtering voltage signal to obtain a voltage reduction signal; the conversion module is used for converting the voltage reduction signal into a power failure detection signal and transmitting the power failure detection signal to the early warning module; and the early warning module is used for outputting a power failure early warning signal when the power failure detection signal is an invalid electrical signal. The technical problem that the service life of the battery is damaged due to the fact that the battery of the uninterruptible power supply is in a power-shortage state due to long-time power supply is avoided, and the accuracy of power failure detection and the service life of the battery are improved.
Description
Technical Field
The utility model relates to a switch technical field especially relates to a giga industrial grade switch power supply power failure detection circuitry, device and equipment.
Background
At present, industrial-grade switch's application is more and more common, and industrial-grade switch needs uninterrupted duty, generally adopts uninterrupted power source to supply power for the switch, when mains supply falls the power, then converts the battery in the uninterrupted power source into for the switch power supply, but if the commercial power cuts off the power supply for a long time, then can lead to the battery in the uninterrupted power source to be in insufficient voltage state for a long time, not only can reduce battery life to when battery power exhausts, still can lead to the switch to shut down unusually.
The above is only for the purpose of assisting understanding of the technical solutions of the present invention, and does not represent an admission that the above is the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a giga industrial grade switch power supply falls electric detection circuitry, device and equipment, aims at solving the commercial power and falls the technical problem that leads to uninterrupted power source's battery life to reduce.
In order to achieve the above object, the utility model provides a power failure detection circuit for a kilomega industrial-grade switch, the circuit comprises a filtering module, a voltage reduction module, a conversion module and an early warning module, the filtering module is connected with the voltage reduction module, the voltage reduction module is connected with the conversion module, and the conversion module is connected with the early warning module;
the filtering module is used for receiving a voltage signal of a commercial power input end of the uninterruptible power supply, filtering an interference signal in the voltage signal and obtaining a filtering voltage signal;
the voltage reduction module is used for carrying out voltage reduction processing on the filtering voltage signal to obtain a voltage reduction signal;
the conversion module is used for converting the voltage reduction signal into a power failure detection signal and transmitting the power failure detection signal to the early warning module;
and the early warning module is used for outputting a power failure early warning signal when the power failure detection signal is an invalid electric signal.
Optionally, the early warning module includes a switch unit and an early warning unit, and the switch unit is connected to the early warning unit;
the switch unit is used for switching on the early warning circuit loop where the early warning unit is located when the power failure detection signal is an invalid electrical signal;
and the early warning unit is used for outputting a power failure early warning signal when the early warning circuit loop is switched on.
Optionally, the filtering module includes a first resistor, a second resistor, and a first capacitor;
the first end of first resistance is connected with uninterrupted power source's commercial power input end, the second end of first resistance with the first end of second resistance is connected, the second end of second resistance with uninterrupted power source's negative pole is connected, the first end of first electric capacity with the first end of second resistance is connected, the second end of first electric capacity with the second end of second resistance is connected.
Optionally, the voltage reduction module comprises a transformer, a first diode, a second capacitor and a second zener diode;
the first end of the primary coil of the transformer is connected with the first end of the second capacitor, the second end of the primary coil of the transformer is connected with the second end of the second capacitor, the first end of the secondary coil of the transformer is connected with the anode of the first diode, the cathode of the first diode is connected with the first end of the second capacitor, the second end of the second capacitor is grounded, the cathode of the second voltage stabilizing diode is connected with the first end of the second capacitor, and the anode of the second voltage stabilizing diode is grounded.
Optionally, the conversion module comprises an optocoupler;
the first end of the optical coupler is connected with the cathode of the second voltage stabilizing diode, the second end of the optical coupler is connected with the anode of the second voltage stabilizing diode, and the third end of the optical coupler and the fourth end of the optical coupler are connected with the switch unit.
Optionally, the switch unit includes a third resistor, a fourth resistor, a fifth resistor, an MOS transistor, and a third zener diode;
the first end of third resistance is connected with power supply, the first end of fourth resistance respectively with the second end of third resistance with the third end connection of opto-coupler, the second end ground connection of fourth resistance, the second end of fourth resistance still with the fourth end connection of opto-coupler, the negative pole of third zener diode with the first end of fourth resistance is connected, the positive pole of third zener diode with the second end connection of fourth resistance, the negative pole of third zener diode still with the grid connection of MOS pipe, the first end of fifth resistance with the first end connection of third resistance, the second end of fifth resistance with the source connection of MOS pipe, the drain electrode of MOS pipe with the positive pole of early warning unit is connected, the negative pole ground connection of early warning module.
Optionally, the early warning unit is a buzzer or an LED lamp.
In order to achieve the above object, the utility model also provides a giga industrial grade switch power supply falls electric detection means, giga industrial grade switch power supply falls electric detection means includes as above giga industrial grade switch power supply fall electric detection circuitry.
In order to realize the above object, the utility model also provides a giga industrial grade switch power supply falls electric check out test set, giga industrial grade switch power supply falls electric check out test set include as above giga industrial grade switch power supply fall electric detection device.
The technical scheme of the utility model provides a giga industrial grade switch power supply power failure detection circuitry, the circuit includes filtering module, step-down module, conversion module and early warning module, filtering module with step-down module is connected, step-down module with conversion module is connected, conversion module with early warning module is connected; the filtering module is used for receiving a voltage signal of a commercial power input end of the uninterruptible power supply, filtering an interference signal in the voltage signal and obtaining a filtering voltage signal; the voltage reduction module is used for carrying out voltage reduction processing on the filtering voltage signal to obtain a voltage reduction signal; the conversion module is used for converting the voltage reduction signal into a power failure detection signal and transmitting the power failure detection signal to the early warning module; and the early warning module is used for outputting a power failure early warning signal when the power failure detection signal is an invalid electric signal. Because the utility model discloses an obtain the filtering voltage signal through filtering the interfering signal with among the uninterrupted power source mains input end voltage signal, the step-down module steps down the filtering voltage signal and obtains the step-down signal, conversion module trades the step-down signal dress for the power failure detection signal, the early warning module is when the power failure detection signal is invalid signal, output early warning signal, can be when the mains input end's of uninterrupted power source mains power falls, in time send early warning signal, in order to remind relevant personnel in time to investigate the trouble, avoided leading to the battery to be in the insufficient voltage state because of uninterrupted power source's the long-time power supply of battery, and harm battery life's technical problem, the degree of accuracy and the life of uninterrupted power source battery that fall the power detection, have been improved.
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 prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a functional block diagram of an embodiment of the power failure detection circuit of the gigabit industrial-class switch of the present invention;
fig. 2 is a functional block diagram of an embodiment of the power failure detection circuit of the gigabit industrial-class switch of the present invention;
fig. 3 is the circuit structure diagram of an embodiment of the power failure detection circuit for gigabit industrial switch.
The reference numbers indicate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
20 | |
| 30 | |
40 | Early warning module |
| 401 | Switch unit | 402 | Early warning unit |
| R1 | A first resistor | R2 | A second resistor |
| C1 | First capacitor | T | Transformer device |
| D1 | First diode | C2 | Second capacitor |
| D2 | Second voltage regulator diode | OC | Optical coupler |
| R3 | Third resistance | R4 | Fourth resistor |
| R5 | Fifth resistor | Q | MOS tube |
| D3 | Third voltage regulator diode |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front, rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
Furthermore, the descriptions in the present application related to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or to imply that the number of technical features indicated are implicitly being indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a giga industrial grade switch power supply power failure detection circuit.
Referring to fig. 1, in the embodiment of the present invention, the power failure detection circuit for a gigabit industrial switch includes a filtering module 10, a voltage reduction module 20, a conversion module 30 and an early warning module 40, where the filtering module 10 is connected to the voltage reduction module 20, the voltage reduction module 20 is connected to the conversion module 30, and the conversion module 30 is connected to the early warning module 40;
the filtering module 10 is configured to receive a voltage signal at a mains input end of an uninterruptible power supply, filter an interference signal in the voltage signal, and obtain a filtered voltage signal.
It is understood that an Uninterruptible Power Supply (USP) is a Power Supply that contains an energy storage device; the uninterruptible power supply is connected with the mains supply, when the mains supply is normal, the kilomega industrial-grade switch is powered by the mains supply, and the energy storage device is charged by the mains supply; when the mains supply is powered off, the kilomega industrial-grade switch is supplied with power through the energy storage device.
And the voltage reduction module 20 is configured to perform voltage reduction processing on the filtered voltage signal to obtain a voltage reduction signal.
It should be understood that, after the filtered voltage signal is subjected to voltage reduction processing by the voltage reduction module, a voltage reduction signal with a voltage value of the target voltage is obtained, and the voltage reduction signal can be used for subsequent power failure detection.
The conversion module 30 is configured to convert the voltage reduction signal into a power failure detection signal, and transmit the power failure detection signal to the early warning module 40.
It can be understood that, after the step-down signal is transmitted to the conversion module, the conversion module converts the step-down signal into a power-down detection signal.
And the early warning module 40 is configured to output a power failure early warning signal when the power failure detection signal is an invalid electrical signal.
It should be understood that the invalid signal may be that the voltage value of the power down detection signal is greater than 0 or that the voltage value of the power down detection signal is greater than a preset voltage value.
Further, referring to fig. 2, in order to send out an early warning signal in time when the mains supply is powered off, the early warning module 40 includes a switch unit 401 and an early warning unit 402, and the switch unit 401 is connected to the early warning unit 402; the switch unit 401 is configured to switch on the early warning circuit loop where the early warning unit is located when the power failure detection signal is an invalid electrical signal; the early warning unit 402 is configured to output a power failure early warning signal when the early warning circuit loop is turned on.
It can be understood that, when the power failure detection signal is an effective signal, the switch unit cuts off the early warning circuit loop where the early warning unit is located, at the moment, the early warning unit does not work, and the effective signal can be a voltage value of the power failure detection signal which is 0.
In specific implementation, the switch unit receives the power failure detection signal output by the conversion unit, and switches on the early warning circuit loop where the early warning unit is located when the power failure detection signal is a high-level signal, and the early warning unit outputs the power failure early warning signal when the early warning circuit loop is switched on.
Further, referring to fig. 3, in order to improve the accuracy of power down detection, the filtering module includes a first resistor R1, a second resistor R2, and a first capacitor C1;
the first end of first resistance R1 is connected with uninterrupted power source's commercial power input end, the second end of first resistance R1 with the first end of second resistance R2 is connected, the second end of second resistance R2 with uninterrupted power source's negative pole is connected, the first end of first electric capacity C1 with the first end of second resistance R2 is connected, the second end of first electric capacity C1 with the second end of second resistance R2 is connected.
It can be understood that the first resistor R1 is a current-limiting resistor, and the second resistor and the first capacitor form an RC filter circuit, which can filter out the current of a specific frequency in the mains supply to ensure the stability of the circuit.
Further, referring to fig. 3, in order to convert the mains voltage into the target voltage, the voltage dropping module includes a transformer T, a first diode D1, a second capacitor C2, and a second zener diode D2;
a first end of a primary coil of the transformer T is connected to a first end of the second capacitor C2, a second end of the primary coil of the transformer T is connected to a second end of the second capacitor C2, a first end of a secondary coil of the transformer T is connected to an anode of the first diode D1, a cathode of the first diode D1 is connected to a first end of the second capacitor C2, a second end of the second capacitor C2 is grounded, a cathode of the second zener diode D2 is connected to a first end of the second capacitor C2, and an anode of the second zener diode D2 is grounded.
It can be understood that the transformer T steps down the filtered voltage signal, the filtered voltage signal after the step-down processing is rectified by the first diode D1, and the step-down signal is obtained through the second capacitor C2, and the voltage of the step-down signal is a dc voltage; when the circuit voltage of the second zener diode D2 changes suddenly, so that the voltage across the D2 is greater than the critical voltage of the D2, the D2 is broken down in the reverse direction, and at this time, the voltage across the second zener diode is kept stable, thereby preventing the circuit from being burned out due to the increase of the voltage.
Further, referring to fig. 3, in order to isolate the early warning module from other circuits to improve the safety of the circuit, the conversion module 30 includes an optical coupler OC; the first end of opto-coupler OC with the cathode connection of the second steady voltage two D2 polar tube, the second end of opto-coupler OC with the anode connection of second steady voltage diode D2, the third end of opto-coupler OC with the fourth end of opto-coupler OC with switch unit 401 connects.
It can be understood that the optocoupler can isolate the early warning module from other modules, a light emitting diode is arranged in the optocoupler, when the voltage reduction signal is normal, the light emitting diode emits light, and the phototriode is conducted; when the voltage reduction signal is abnormal, the light emitting diode is turned off, and the photosensitive triode is cut off.
Further, referring to fig. 3, in order to send out an early warning signal in time when the mains supply is powered down to remind the user of removing the fault in time, the switch unit 401 includes a third resistor R3, a fourth resistor R4, a fifth resistor R5, a MOS transistor Q, and a third zener diode D3;
the first end of the third resistor R3 is connected with a power supply, the first end of the fourth resistor R4 is respectively connected with the second end of the third resistor R3 and the third end of the optical coupler OC, the second end of the fourth resistor R4 is grounded, the second end of the fourth resistor R4 is further connected with the fourth end of the optical coupler OC, a cathode of the third zener diode D3 is connected to a first terminal of the fourth resistor R4, an anode of the third zener diode D3 is connected to a second terminal of the fourth resistor D4, the cathode of the third zener diode D3 is further connected to the gate of the MOS transistor Q, the first end of the fifth resistor R5 is connected to the first end of the third resistor R3, the second end of the fifth resistor R5 is connected to the source of the MOS transistor Q, the drain of the MOS transistor Q is connected to the anode of the early warning unit 402, and the cathode of the early warning module 402 is grounded.
It can be understood that the MOS transistor Q is an NMOS, the power supply may be a 5V power supply, when the mains supply is normal, the phototriode in the optocoupler is turned on, at this time, the gate of the MOS transistor Q is grounded, Q is turned off, the early warning unit J is not powered on, and the early warning unit does not work; when the mains supply is powered off, the phototriode in the OC is cut off, the voltage of the grid of the Q is the voltage at two ends of the fourth resistor, at the moment, the Q is conducted, the loop where the J is located is conducted, the J is connected with the power supply, and an early warning signal is sent out; the third resistor R3 is a current-limiting resistor for limiting the current flowing through the photodiode in the optocoupler OC so as to protect the optocoupler from being burnt out; the fifth resistor R5 is a current-limiting resistor, when the mains supply is powered off, the MOS tube Q is conducted, and the fifth resistor R5 is used for limiting the current flowing through Q and J, so that the circuit element is protected; the third voltage stabilizing diode D3 can make the voltage at both ends of the early warning unit keep stable, and the circuit safety is guaranteed.
Further, in order to send out an early warning signal in time when the mains supply is powered down, the early warning unit is a buzzer or an LED lamp.
It can be understood that the warning unit may be a buzzer or an LED lamp, or may be a combination of a buzzer and an LED, which is not limited in this embodiment.
The technical scheme of the embodiment provides a power failure detection circuit for a power supply of a kilomega industrial-grade switch, which comprises a filtering module, a voltage reduction module, a conversion module and an early warning module, wherein the filtering module is connected with the voltage reduction module, the voltage reduction module is connected with the conversion module, and the conversion module is connected with the early warning module; the filtering module is used for receiving a voltage signal of a commercial power input end of the uninterruptible power supply, filtering an interference signal in the voltage signal and obtaining a filtering voltage signal; the voltage reduction module is used for carrying out voltage reduction processing on the filtering voltage signal to obtain a voltage reduction signal; the conversion module is used for converting the voltage reduction signal into a power failure detection signal and transmitting the power failure detection signal to the early warning module; and the early warning module is used for outputting a power failure early warning signal when the power failure detection signal is an invalid electrical signal. Because this embodiment is through filtering the interfering signal in with uninterrupted power source mains input end voltage signal and obtaining the filtering voltage signal, the step-down module obtains the step-down signal to filtering voltage signal step-down, conversion module trades the step-down signal into the power failure detection signal, the early warning module is when the power failure detection signal is invalid signal, output early warning signal, can be when the commercial power of uninterrupted power source's mains input end falls the electricity, in time send early warning signal, in order to remind relevant personnel in time to troubleshoot the trouble, avoided leading to the battery to be in the insufficient voltage state because of uninterrupted power source's battery power supply for a long time, and the technical problem who harm battery life, the degree of accuracy that has improved the power failure detection and the life of uninterrupted power source battery.
In order to achieve the above object, the utility model also provides a giga industrial grade switch power supply falls electric detection means, giga industrial grade switch power supply falls electric detection means includes as above giga industrial grade switch power supply fall electric detection circuitry. The specific structure of the power failure detection circuit of the gigabit industrial switch refers to the above embodiments, and since the apparatus employs all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and are not described in detail herein.
In order to realize the above purpose, the utility model also provides a giga industrial grade switch power supply power failure detection equipment, giga industrial grade switch power supply power failure detection equipment includes as above giga industrial grade switch power supply power failure detection device.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (9)
1. A power failure detection circuit of a kilomega industrial-grade switch is characterized by comprising a filtering module, a voltage reduction module, a conversion module and an early warning module, wherein the filtering module is connected with the voltage reduction module, the voltage reduction module is connected with the conversion module, and the conversion module is connected with the early warning module;
the filtering module is used for receiving a voltage signal of a commercial power input end of the uninterruptible power supply, filtering an interference signal in the voltage signal and obtaining a filtering voltage signal;
the voltage reduction module is used for carrying out voltage reduction processing on the filtering voltage signal to obtain a voltage reduction signal;
the conversion module is used for converting the voltage reduction signal into a power failure detection signal and transmitting the power failure detection signal to the early warning module;
and the early warning module is used for outputting a power failure early warning signal when the power failure detection signal is an invalid electric signal.
2. The circuit of claim 1, wherein the early warning module comprises a switch unit and an early warning unit, the switch unit being connected to the early warning unit;
the switch unit is used for switching on the early warning circuit loop where the early warning unit is located when the power failure detection signal is an invalid electrical signal;
and the early warning unit is used for outputting a power failure early warning signal when the early warning circuit loop is switched on.
3. The circuit of claim 2, wherein the filtering module comprises a first resistor, a second resistor, and a first capacitor;
the first end of first resistance is connected with uninterrupted power source's commercial power input end, the second end of first resistance with the first end of second resistance is connected, the second end of second resistance with uninterrupted power source's negative pole is connected, the first end of first electric capacity with the first end of second resistance is connected, the second end of first electric capacity with the second end of second resistance is connected.
4. The circuit of claim 3, wherein the buck module comprises a transformer, a first diode, a second capacitor, and a second zener diode;
the first end of the primary coil of the transformer is connected with the first end of the second capacitor, the second end of the primary coil of the transformer is connected with the second end of the second capacitor, the first end of the secondary coil of the transformer is connected with the anode of the first diode, the cathode of the first diode is connected with the first end of the second capacitor, the second end of the second capacitor is grounded, the cathode of the second voltage stabilizing diode is connected with the first end of the second capacitor, and the anode of the second voltage stabilizing diode is grounded.
5. The circuit of claim 4, wherein the conversion module comprises an optocoupler;
the first end of the optical coupler is connected with the cathode of the second voltage stabilizing diode, the second end of the optical coupler is connected with the anode of the second voltage stabilizing diode, and the third end of the optical coupler and the fourth end of the optical coupler are connected with the switch unit.
6. The circuit of claim 5, wherein the switching unit comprises a third resistor, a fourth resistor, a fifth resistor, a MOS transistor and a third zener diode;
the first end of third resistance is connected with power supply, the first end of fourth resistance respectively with the second end of third resistance with the third end of opto-coupler is connected, the second end ground connection of fourth resistance, the second end of fourth resistance still with the fourth end of opto-coupler is connected, the negative pole of third zener diode with the first end of fourth resistance is connected, the positive pole of third zener diode with the second end of fourth resistance is connected, the negative pole of third zener diode still with the grid connection of MOS pipe, the first end of fifth resistance with the first end of third resistance is connected, the second end of fifth resistance with the source connection of MOS pipe, the drain electrode of MOS pipe with the positive pole of early warning unit is connected, the negative pole ground connection of early warning module.
7. The circuit of claim 5, wherein the early warning unit is a buzzer or an LED light.
8. A gigabit industrial scale switch power down detection device, characterized in that said device comprises a circuit according to any one of claims 1 to 7.
9. A gigabit industrial scale switch power down detection device, characterized in that it comprises the apparatus of claim 8.
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| CN202220660739.5U CN217278841U (en) | 2022-03-24 | 2022-03-24 | Power failure detection circuit, device and equipment for kilomega industrial switch |
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| CN202220660739.5U CN217278841U (en) | 2022-03-24 | 2022-03-24 | Power failure detection circuit, device and equipment for kilomega industrial switch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115993147A (en) * | 2023-01-09 | 2023-04-21 | 杭州和利时自动化有限公司 | Wireless instrument and acquisition device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115993147A (en) * | 2023-01-09 | 2023-04-21 | 杭州和利时自动化有限公司 | Wireless instrument and acquisition device |
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