CN208581173U - Inverse-excitation type switch power-supply - Google Patents
Inverse-excitation type switch power-supply Download PDFInfo
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- CN208581173U CN208581173U CN201821026400.XU CN201821026400U CN208581173U CN 208581173 U CN208581173 U CN 208581173U CN 201821026400 U CN201821026400 U CN 201821026400U CN 208581173 U CN208581173 U CN 208581173U
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- type switch
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Abstract
The utility model discloses a kind of inverse-excitation type switch power-supplies, it is related to a kind of switch power technology field, it solves inverse-excitation type switch power-supply although and can be realized power supply, but when needing to be powered two different capacity devices, since the required voltage of two different capacity devices is different, it needs to be powered by two inverse-excitation type switch power-supplies, the problem of being more troublesome, its key points of the technical solution are that: including the high-frequency transformation device for output AC power source, high-frequency transformation device is coupled to receive AC power source and export the fairing of rectified signal, and fairing is coupled to receive rectified signal and rectified signal is converted to the conversion equipment of two-way voltage source, the inverse-excitation type switch power-supply of the utility model, output multi-channel supply voltage, the driving circuit power supply of power supply needed for different capacity device is provided.
Description
Technical field
The utility model relates to a kind of switch power technology field, in particular to a kind of inverse-excitation type switch power-supply.
Background technique
Inverse-excitation type switch power-supply refer to when its flyback transformer armature winding (primary side) conducting when, secondary windings
(secondary side) cut-off, the flyback transformer is in energy storage state at this time, and when the armature winding (primary side) of flyback transformer is cut
When only, secondary windings (secondary side) conducting, energy stored before is released to load by the flyback transformer at this time, makes to bear
Carry work.
Although existing inverse-excitation type switch power-supply can be realized power supply, but when needs carry out two different capacity devices
When power supply, since the required voltage of two different capacity devices is different, need to be powered by two inverse-excitation type switch power-supplies,
It is more troublesome, there is room for improvement.
Utility model content
The purpose of the utility model is to provide a kind of inverse-excitation type switch power-supply, output multi-channel supply voltage provides different function
The driving circuit power supply of power supply needed for rate device.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of inverse-excitation type switch power-supply, including for output AC power source high-frequency transformation device, be coupled to high frequency transformation
Device is to receive AC power source and export the fairing of rectified signal and be coupled to fairing to receive rectified signal simultaneously
Rectified signal is converted to the conversion equipment of two-way voltage source.
Using the above scheme, AC power source can produce by the setting of high-frequency transformation device, and combines fairing
The AC power source that high-frequency transformation device can be exported by being arranged is rectified into required rectified signal, in addition combined with conversion equipment
Rectified signal can be converted into required double loop power supply by being arranged.
Preferably, inverse-excitation type switch power-supply further includes being set between fairing and conversion equipment to realize filtering
Filter.
Using the above scheme, effectively rectified signal can be completed to fairing by the setting of filter to filter
Wave, the rectified signal for effectively avoiding extraneous signal from exporting fairing impact.
Preferably, inverse-excitation type switch power-supply further includes whole with detection completion between setting fairing and filter
The voltage check device of line voltage distribution situation after stream and voltage sense signal is preset with voltage reference signal and by voltage
Reference signal and voltage detection signal are compared and the voltage comparator device of output voltage comparison signal, is coupled to voltage and compares
Device with receive voltage comparison signal and export control signal control device, be coupled to control device with receive control signal simultaneously
The suggestion device of prompt is realized in response to control signal.
Using the above scheme, line voltage distribution situation can be detected in conjunction with voltage check device, and passes through voltage ratio
Setting compared with device may determine that whether the voltage on route at this time complies with standard, and the combination of control device, suggestion device is set
Setting can effectively inform whether line voltage distribution is normal at this time in staff.
Preferably, the voltage comparator device includes the voltage reference circuit for output voltage reference signal, and,
Be coupled to voltage reference circuit with and meanwhile receive voltage reference signal and voltage detection signal and by voltage reference signal and voltage
Detection signal is compared and the voltage comparator circuit of output voltage comparison signal.
Using the above scheme, staff can be convenient by the setting of voltage reference circuit and adjusts benchmark electricity as needed
Pressure, and the setting of voltage comparator circuit facilitates deciding on.
Preferably, inverse-excitation type switch power-supply further include be set between voltage check device and voltage comparator device with
For amplifying the signal amplifying apparatus of voltage detection signal.
Using the above scheme, it is conducive to amplify voltage detection signal by being provided with for signal amplifying apparatus, thus
Avoid voltage detection signal that from can not normally being transmitted when being influenced by external environment.
Preferably, the suggestion device includes being coupled to control device to receive control signal and in response to controlling signal
To realize the light prompt circuit of light prompt and be coupled to control device to receive control signal and in response to control signal
To realize the auditory tone cues electric circuit of auditory tone cues.
Using the above scheme, luminous prompting can be carried out to staff by the setting of light prompt circuit, especially
Prompt effect more obvious in a riot of sound environment, and the setting of auditory tone cues electric circuit can not have in people due to carelessness
It is reminded by way of sound when having concern circuit.
Preferably, the light prompt circuit includes switch unit for exporting switching signal and is coupled to switching
Unit is to receive switching signal and realize the luminescence unit of stroboscopic in response to switching signal.
Using the above scheme, strobe light emission may be implemented by the setting of switch unit and luminescence unit, compared to one
As illumination mode, have preferably prompt effect.
Preferably, inverse-excitation type switch power-supply further includes the timed cut-off device of timing turning off suggestion device.
Using the above scheme, it can be mentioned by luminescence unit, auditory tone cues unit by the setting of timed cut-off device
It is cut off in time after a period of time after showing.
Preferably, inverse-excitation type switch power-supply further includes the opening/shutting controller for controlling suggestion device opening and closing.
Using the above scheme, opening/shutting controller can effectively realize the control to suggestion device, to be conducive to work
Personnel choose whether to prompt when high-frequency transformation device goes wrong as needed.
Preferably, inverse-excitation type switch power-supply further includes being coupled to control device to receive control signal and in response to control
Signal is with the spare high frequency transformer of output AC power source.
Using the above scheme, it may be implemented to ask in high-frequency transformation device in conjunction with spare high frequency transformer and control device
The real-time perfoming of topic provides dual power supply in time.
In conclusion the utility model has the following beneficial effects: in conjunction with voltage comparator device, voltage comparator device, control
The setting of device, suggestion device processed can notify work when voltage caused by high-frequency transformation device goes wrong in time
Make personnel, and switched in time with spare high-frequency transformation device in conjunction with spare high-frequency transformation device, guarantees holding for dual power supply
It is continuous to generate.
Detailed description of the invention
Fig. 1 is high-frequency transformation device, fairing, conversion equipment, filter, voltage check device, voltage compare dress
It sets, the circuit connection diagram of control device；
Fig. 2 is the circuit connection diagram of suggestion device, opening/shutting controller, timed cut-off device.
In figure: 1, high-frequency transformation device；2, fairing；3, conversion equipment；4, filter；5, voltage check device；
6, voltage comparator device；7, control device；8, suggestion device；9, voltage reference circuit；10, voltage comparator circuit；11, signal is put
Big device；12, light prompt circuit；13, auditory tone cues electric circuit；14, switch unit；15, timed cut-off device；16, opening and closing control
Device processed；18, spare high frequency transformer；19, luminescence unit.
Specific embodiment
Lower combination attached drawing is described in further detail the utility model.
As shown in Figure 1, a kind of inverse-excitation type switch power-supply disclosed in the present embodiment, including the high frequency for output AC power source
Potential device 1 is coupled to high-frequency transformation device 1 to receive AC power source and export fairing 2 and the coupling of rectified signal
In fairing 2 to receive rectified signal and rectified signal is converted to the conversion equipment 3 of two-way voltage source, wherein high frequency becomes
Pressure device 1 includes that winding N1 and winding N2 is formed, and to form the effect of transformation, fairing 2 is that anode is connected to winding N2
Diode D5, conversion equipment 3 include one end be connected to diode D5 cathode zener diode ZD2 and one end connection
In the resistance R14 of zener diode ZD2, zero level VE, corresponding VEE are provided between resistance R14 and zener diode ZD2
For negative voltage.
In addition, inverse-excitation type switch power-supply further includes setting to guarantee that rectified signal can effectively completely cut off the influence of external environment
It is placed between fairing 2 and conversion equipment 3 and realizes the filter 4 of filtering, wherein filter 4 is connected to for one end
Diode D5 cathode and the other end are connected to the electrolytic capacitor C11 of diode D5 anode.
Inverse-excitation type switch power-supply further includes after completing rectification between setting fairing 2 and filter 4 with detection
The voltage check device 5 of line voltage distribution situation and voltage sense signal is preset with voltage reference signal and by voltage reference
Signal and voltage detection signal are compared and the voltage comparator device 6 of output voltage comparison signal, is coupled to voltage and compares dress
Set 6 with receive voltage comparison signal and export control signal control device 7, be coupled to control device 7 to receive control signal
And the suggestion device 8 of prompt is realized in response to control signal.
Voltage check device 5 be one end be connected to winding N2 one end and the other end be connected to winding N2 the other end electricity
Pressure sensor, the preferred Hall voltage sensor of voltage sensor, and model CHV-25P.
Inverse-excitation type switch power-supply further includes being set between voltage check device 5 and voltage comparator device 6 for putting
The signal amplifying apparatus 11 of big voltage detection signal.
Signal amplifying apparatus 11 is connected to resistance R2 including resistance R2, the normal phase input end that one end is connected to voltage sensor
Voltage amplifier A1, control terminal is connected to the slide rheostat RP1 of inverting input terminal of voltage amplifier A1, one end is connected to
Slide rheostat RP1 and the resistance R3, the model AD620 of voltage amplifier A1 here of other end ground connection.
Voltage comparator device 6 includes the voltage reference circuit 9 for output voltage reference signal, and, it is coupled to voltage
Reference circuit 9 with receive simultaneously voltage reference signal and voltage detection signal and by voltage reference signal and voltage detection signal into
Row compares and the voltage comparator circuit 10 of output voltage comparison signal.
Voltage reference circuit 9 includes that the slide rheostat RP2 of one end ground connection, one end are connected to slide rheostat RP2 and another
One end is connected to the resistance R4 of power supply；Voltage comparator circuit 10 is that normal phase input end is connected to voltage amplifier A1 and anti-phase input
End is connected to the voltage comparator A2 of the tie point of resistance R4 and slide rheostat RP2, the model of voltage comparator A2 here
For LM393.
Control device 7 includes that the triode Q1 for the output end that base stage is connected to voltage comparator A2 and one end are connected to
The relay KM1 of emitter and the other end ground connection of triode Q1, triode Q1 here are NPN type and model S9014, after
The model HH52P of electric appliance KM1.
As shown in Fig. 2, suggestion device 8 includes being coupled to control device 7 to receive control signal and in response to controlling signal
To realize the light prompt circuit 12 of light prompt and be coupled to control device 7 to receive control signal and believe in response to control
Number to realize the auditory tone cues electric circuits 13 of auditory tone cues.
Auditory tone cues electric circuit 13 is the loudspeaker BL1 that one end ground connection and the other end are connected to switch KT1-1.
Light prompt circuit 12 include switch unit 14 for exporting switching signal and be coupled to switch unit 14 with
It receives switching signal and realizes the luminescence unit 19 of stroboscopic in response to switching signal.
Switch unit 14 includes the capacitor C1 of one end ground connection, one end is connected to the resistance R10 of capacitor C1, one end is connected to electricity
Resistance R9, the 7th foot for the emitter that resistance R10 and the other end are connected to triode Q2 are connected to the connection of resistance R9 and resistance R10
Point and the 6th foot, crus secunda are all connected to 555 timer A4 of the tie point of capacitor C1 and resistance R10, and luminescence unit 19 includes
Resistance R12, the anode that one end is connected to the third foot of 555 timer A4 are connected to the light-emitting diodes of resistance R12 and minus earth
Pipe D2, cathode are connected to the light emitting diode D1 of the third foot of 555 timer A4, one end is connected to the anode of light emitting diode D1
And the other end is connected to the resistance R11 of switch KT1-1.
Foregoing circuit effectively realizes light emitting diode D1 and light-emitting diodes by the intermittent output of 555 timers
The intermittent conduction of pipe D2 realizes the effect of flashing.
Inverse-excitation type switch power-supply further includes the timed cut-off device 15 of timing turning off suggestion device 8, timed cut-off device 15
It is connected to the time relay KT2 of the switch KM1-1 for being controlled by relay KM1 and other end ground connection for one end, works as time relay
The timing time of device KT2 to when, by being controlled by the switch KT2-1 of time relay KT2 and being controlled by time relay
The switch KT2-2 of device KT2 realizes automatically cutting, to avoid avoiding carrying out acousto-optic simultaneously while guaranteeing acousto-optic hint
Prompt causes the waste of power supply so that continue sound production prompt in the case where unmanned response.
Inverse-excitation type switch power-supply further includes being coupled to control device 7 to receive control signal and in response to control signal with defeated
The spare high frequency transformer 18 of AC power source out.
Spare high frequency transformer 18 be one end be connected to winding N2 and the other end be connected to winding N2 the other end high frequency
Transformer N4, when relay KM1 obtains electric, by the switch KM1-4 and switch KM1-5 energy that are controlled by relay KM1
It is enough in time to cut off original high-frequency transformation device 1, while switch KM1-2 and switch by being controlled by relay KM1
KM1-3 triggers spare high frequency transformer 18 and starts, to guarantee the continued power work of dual power supply.
In addition, inverse-excitation type switch power-supply further includes the opening/shutting controller 16 for controlling the opening and closing of suggestion device 8, opening and closing control
Device 16 processed is the relay KM3 that one end ground connection and the other end are connected to switch SB1, wherein the model of relay KM3
HH52P simultaneously closes off auditory tone cues electric circuit 13 and light prompt circuit 12 when relay KM3 obtains electric.
Whole process is as follows:
When needing to provide dual power supply, external reference voltages are set from being numerically converted to by high-frequency transformation device 1
Standby required voltage value, voltage is rectified one by one, is filtered, by fairing 2, filter 4 finally by converting means
It sets 3 and is converted into required dual power supply.
Additionally, due to during converting dual power supply, if high-frequency transformation device 1 goes wrong, lead to the voltage of conversion
It is not right to be worth, so being detected by voltage check device 5, and combines voltage comparator device 6, control device 7, suggestion device
8 when voltage goes wrong, and carries out acousto-optic hint in time, and combine timed cut-off device 15 within the preset time and
When cut off suggestion device 8, prompt to impact the work of staff for a long time to avoid suggestion device 8, while by opening
It closes control device 167 and can be convenient staff and choose whether to prompt when 1 outlet problem of high-frequency transformation device, remove
More than, since lasting dual power supply may be implemented in control device 7, spare high frequency transformer 18.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (10)
1. a kind of inverse-excitation type switch power-supply, it is characterized in that: including high-frequency transformation device (1) for output AC power source, coupling
In high-frequency transformation device (1) to receive AC power source and export the fairing (2) of rectified signal and be coupled to fairing
(2) to receive rectified signal and rectified signal is converted to the conversion equipment (3) of two-way voltage source.
2. inverse-excitation type switch power-supply according to claim 1, it is characterized in that: inverse-excitation type switch power-supply further include be set to it is whole
Flow the filter (4) that filtering is realized between device (2) and conversion equipment (3).
3. inverse-excitation type switch power-supply according to claim 2, it is characterized in that: inverse-excitation type switch power-supply further includes setting rectification
To detect the line voltage distribution situation and voltage sense signal after completing rectification between device (2) and filter (4)
Voltage check device (5) is preset with voltage reference signal and is compared voltage reference signal and voltage detection signal and defeated
Out the voltage comparator device (6) of voltage comparison signal, be coupled to voltage comparator device (6) to receive voltage comparison signal and export
It controls the control device (7) of signal, be coupled to control device (7) to receive control signal and mention in response to control signal to realize
The suggestion device (8) shown.
4. inverse-excitation type switch power-supply according to claim 3, it is characterized in that: the voltage comparator device (6) includes being used for
The voltage reference circuit (9) of output voltage reference signal, and, be coupled to voltage reference circuit (9) with and meanwhile receive voltage base
Voltage reference signal and voltage detection signal are simultaneously compared simultaneously output voltage comparison signal by calibration signal and voltage detection signal
Voltage comparator circuit (10).
5. inverse-excitation type switch power-supply according to claim 3, it is characterized in that: inverse-excitation type switch power-supply further includes being set to electricity
It presses between detection device (5) and voltage comparator device (6) with the signal amplifying apparatus (11) for amplifying voltage detection signal.
6. inverse-excitation type switch power-supply according to claim 3, it is characterized in that: the suggestion device (8) includes being coupled to control
Device (7) processed is to receive control signal and realize the light prompt circuit (12) and coupling of light prompt in response to control signal
Control device (7) is connected to receive control signal and realize the auditory tone cues electric circuit of auditory tone cues in response to control signal
(13).
7. inverse-excitation type switch power-supply according to claim 6, it is characterized in that: the light prompt circuit (12) includes being used for
It exports the switch unit (14) of switching signal and is coupled to switch unit (14) to receive switching signal and believe in response to switching
Number to realize the luminescence unit (19) of stroboscopic.
8. inverse-excitation type switch power-supply according to claim 3, it is characterized in that: inverse-excitation type switch power-supply further includes timing turning off
The timed cut-off device (15) of suggestion device (8).
9. inverse-excitation type switch power-supply according to claim 3, it is characterized in that: inverse-excitation type switch power-supply further includes for controlling
The opening/shutting controller (16) of suggestion device (8) opening and closing.
10. inverse-excitation type switch power-supply according to claim 3, it is characterized in that: inverse-excitation type switch power-supply further includes being coupled to
Control device (7) is to receive control signal and in response to control signal with the spare high frequency transformer (18) of output AC power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821026400.XU CN208581173U (en) | 2018-06-30 | 2018-06-30 | Inverse-excitation type switch power-supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821026400.XU CN208581173U (en) | 2018-06-30 | 2018-06-30 | Inverse-excitation type switch power-supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208581173U true CN208581173U (en) | 2019-03-05 |
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ID=65508284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821026400.XU Active CN208581173U (en) | 2018-06-30 | 2018-06-30 | Inverse-excitation type switch power-supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208581173U (en) |
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2018
- 2018-06-30 CN CN201821026400.XU patent/CN208581173U/en active Active
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