CN109963393A - A kind of flash switch detection circuit - Google Patents
A kind of flash switch detection circuit Download PDFInfo
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- CN109963393A CN109963393A CN201910412305.6A CN201910412305A CN109963393A CN 109963393 A CN109963393 A CN 109963393A CN 201910412305 A CN201910412305 A CN 201910412305A CN 109963393 A CN109963393 A CN 109963393A
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- circuit
- output end
- input terminal
- detection circuit
- wave filtering
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a kind of flash switch detection circuits, including current rectifying and wave filtering circuit, detection circuit, DC-DC converter and control circuit；The input terminal of current rectifying and wave filtering circuit and the input terminal electrical connection of AC power source, output end are connected with the input terminal of DC-DC converter；The output end electrical connection of the input terminal and current rectifying and wave filtering circuit of detection circuit, output end are connected with the input terminal of control circuit；For detecting the off-position of current rectifying and wave filtering circuit input terminal, and generate the first level signal of input control circuit；Control circuit is used to respond the working condition of the first level signal switching power load.Flash switch detection circuit in the application can be switched with flash to be used cooperatively, so that after the working condition of user's operation flash switching electrical equipment, it is not turned off the on-state of external power supply and electrical equipment, possibility is provided for the Wireless remote control of electrical equipment, so that user is more convenient using intelligent equipment.
Description
Technical field
The present invention relates to technical field of electric device control, more particularly to a kind of flash switch detection circuit.
Background technique
Currently, smart home, which has, to be more and more widely used with the development of network technology.For example, various novel intelligence
Energy household appliances access network by wired or wireless way, to realize through mobile terminal or network to the remote of household appliances
Journey/automatic control.
The control of traditional home appliance is accustomed to based on user, when the user is at home, is often preferred direct by power knob
Household appliance etc. is controlled to open and close.And when carrying out the premise of long-range/automatic control to household appliance, guarantee that household appliance begins
There is electricity eventually.
Current household appliance is equipped with power switch substantially, and directly sets to household electrical appliances when power switch disconnects
Standby power-off, and when power switch closure, it powers to household appliance；And user is also more likely to open by power supply when being in
The opening and closing for closing control household appliance, then also just can not remotely control when user goes out and be in off-position
Household appliance, make troubles for the use of user.
Summary of the invention
The object of the present invention is to provide a kind of flash switch detection circuit, the household appliance for solving off-position can not be into
The problem of row remotely controls.
In order to solve the above technical problems, the present invention provides a kind of flash switch detection circuit, comprising:
Current rectifying and wave filtering circuit, detection circuit, DC-DC converter and control circuit；
The input terminal of the current rectifying and wave filtering circuit and the input terminal electrical connection of AC power source, output end and the DC-DC become
The input terminal of parallel operation is connected；
The electrical connection of the output end of the input terminal of the detection circuit and the current rectifying and wave filtering circuit, output end and the control
The input terminal of circuit is connected；For detecting the off-position of the current rectifying and wave filtering circuit input terminal, and generates and input the control
First level signal of circuit processed；
The control circuit is used to respond the working condition of the first level signal switching power load.
Wherein, the detection circuit includes zener diode and optocoupler；
The zener diode cathode is connected with the output end of the current rectifying and wave filtering circuit, and the positive and described optocoupler is just
Pole input terminal is connected；The negative input of the optocoupler is grounded；
The collector of the optocoupler is connected with the output end of the DC-DC converter, emitter ground connection；
The current collection of the optocoupler is extremely connected with the control circuit, and is the output end of the detection circuit.
Wherein, the detection circuit further include:
The first resistor being set between the cathode of the zener diode and the output end of the current rectifying and wave filtering circuit；
And it is set to the second resistance between the collector of the optocoupler and the output end of the DC-DC converter.
It wherein, further include that input terminal is connected with the output end of the DC-DC converter, output end and the control circuit
The discrimination circuit being connected, whether the power-off duration for detecting the current rectifying and wave filtering circuit input terminal is more than preset duration, and
Generate the second electrical level signal of output to the control circuit；
The control circuit controls the working condition of the power load based on the second electrical level signal.
Wherein, the discrimination circuit includes 3rd resistor, the 4th resistance, capacitor, switching device；
The first end of the 3rd resistor is connected with the output end of the DC-DC converter, second end and the described 4th
The first end of the first end of resistance, the first end of the capacitor and the switching device is connected；The of 4th resistance
The second end of two ends and capacitor ground connection；The output end of the second end of the switching device and DC-DC converter electricity
Connection, third end ground connection；
Wherein, when the voltage value of the first end of the switching device is greater than preset voltage value, then the switching device
Second end and the conducting of third end；When the voltage value of the first end of the switching device is less than preset voltage value, then the switch
The second end of device and third end disconnect；And the second end of the switching device is the output end of the discrimination circuit.
Wherein, the switching device is NPN type triode or NMOS tube.
Wherein, the discrimination circuit further includes the output end and the switching device that the DC-DC converter is arranged in
The 5th resistance between second end.
It wherein, further include that input terminal is connected with the AC power source, the input of output end and the current rectifying and wave filtering circuit
Hold the flash switch being connected；
Wherein, when the flash, which is switched, to be controlled by operation, cut off the current rectifying and wave filtering circuit and the AC power source it
Between access；When flash switch is not controlled by operation, can connect the current rectifying and wave filtering circuit and the AC power source it
Between access.
Wherein, the control circuit further includes the wireless of the switching command for receiving the working condition of switching power load
Communication module.
It wherein, further include the lamps and lanterns being connected with the output end of current rectifying and wave filtering circuit and control circuit output end；
Control circuit is used for the working condition according to the first level signal and second electrical level signal control lamps and lanterns.
In flash switch detection circuit provided by the present invention, the alternating current of access can be converted by current rectifying and wave filtering circuit
For DC voltage, when the input terminal of current rectifying and wave filtering circuit generates power-off, which can pass through detection rectifying and wave-filtering electricity
The direct current of road output, detects the off-position of the input terminal of current rectifying and wave filtering circuit, and can produce corresponding first level letter
Number it is transported to control circuit, which can control the working condition of power load according to first level signal.
Flash switch detection circuit and flash switch in the application are used in combination；Using the traditional electricity of flash switch in place
Source switch after flash switch is pressed and bounces, that is, the external voltage accessed may make to generate of short duration power-off, later again to
Electric equipment remains powered on state, and the flash switch detection circuit in the application can detecte this power process, and pass through
The working condition of testing result control electrical equipment；For example, electrical equipment is become the state closed from the state opened.
It can be seen that the flash switch detection circuit in the application can be switched with flash and is used cooperatively, so that user grasps
When making flash switch, according only to the working condition of user demand switching electrical equipment, and it is not turned off external power supply and electricity consumption is set
Standby on-state is provided possibility for the Wireless remote control of electrical equipment, and is provided just for user using intelligent equipment
Benefit.
Detailed description of the invention
It, below will be to embodiment or existing for the clearer technical solution for illustrating the embodiment of the present invention or the prior art
Attached drawing needed in technical description is briefly described, it should be apparent that, the accompanying drawings in the following description is only this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram of flash switch detection circuit provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of detection circuit provided in the specific embodiment of the invention；
Fig. 3 is the coordinate diagram that the DC bus-bar voltage that the current rectifying and wave filtering circuit of the embodiment of the present invention exports changes over time；
Fig. 4 be another embodiment of the present invention provides detection circuit structural schematic diagram
Fig. 5 be another embodiment of the present invention provides flash switch detection circuit structural schematic diagram；
Fig. 6 be another embodiment of the present invention provides discrimination circuit structural schematic diagram.
Specific embodiment
For electrical equipment, the control switch of controllable appliance opening of device and closing, the control are generally all had
Switch can reach the mesh for opening and closing electrical equipment by the circuit between on or off electrical equipment and external power supply
's.But for equipped with remote control or can be for the electrical equipment by APP software control, if electrical equipment is controlled out
Pass is cut off the power, and just cannot achieve the wireless control of electrical equipment, for user operation bring it is constant.
So, if the control switch of electrical equipment only switches the work shape of electrical equipment in user by control switch
The circuit between electrical equipment and external power supply is cut off when state, and after switching completion, and it is able to maintain electrical equipment and outside
Connection between power supply, then user is also just unrestricted to the control of electrical equipment.
Therefore, one kind provided herein can detecte user and make electrical equipment and external power supply by control switch
Between power process flash switch detection circuit, and based on this power process switching power load working condition, make
User not only can by control switch control power load, but also can by wireless control apparatus control power load, for
Family is offered convenience using intelligentized electrical equipment.
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.Obviously, described embodiments are only a part of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, shall fall within the protection scope of the present invention.
As shown in FIG. 1, FIG. 1 is the structural schematic diagrams of flash switch detection circuit provided in an embodiment of the present invention.The flash
Switch detection circuit may include:
Current rectifying and wave filtering circuit 1, detection circuit 2, DC-DC converter 3 and control circuit 4；
The input terminal of current rectifying and wave filtering circuit 1 and the input terminal electrical connection of AC power source, output end and the DC-DC converter
3 input terminal is connected；
The output end electrical connection of the input terminal and current rectifying and wave filtering circuit 1 of detection circuit 2, output end and the control circuit 4
Input terminal be connected；For detecting the off-position of 1 input terminal of current rectifying and wave filtering circuit, and generate the first of input control circuit
Level signal；
Control circuit 4 is used to respond the working condition of the first level signal switching power load 5.
It should be noted that daily user is the High Level AC Voltage that the power supply that electrical equipment is connected is usually city's net power supply.
And the operating voltages such as power load 5 and control circuit 4 of general electrical equipment are direct current.It is therefore possible to use rectification filter
Wave circuit 1 converts high voltage direct current for High Level AC Voltage and then is converted to high voltage direct current by DC-DC converter 3
Low-voltage DC obtains the supply voltage for power load 5 and the power supply of control circuit 4.
As previously mentioned, if the control switch of electrical equipment only can be between of short duration cutting electrical equipment and control switch
Circuit, electrical equipment can be realized and powered by duration.It is to need to cut by the switch but when user's operation control switch
Change the working condition of electrical equipment.
Flash switch detection circuit of the invention can be used cooperatively with flash switch 6, when flash switch 6 is user-operably
When control (for example, pressing), the access between electrical equipment and external power supply can be disconnected, when flash switch 6 is released,
Electrical equipment and external power supply can be connected again, so that the power input of electrical equipment generates an of short duration power-off
State.
Flash switch detection circuit in the present embodiment can detecte the friendship inputted by 1 input terminal of current rectifying and wave filtering circuit
The off-position of galvanic electricity pressure.Specifically, when can be the power-off that the voltage based on 1 input terminal of current rectifying and wave filtering circuit generates, rectification
The DC bus-bar voltage of 1 output end of filter circuit also will appear corresponding variation, and then by detecting the DC bus-bar voltage
Variation obtains the off-position of 1 input terminal of current rectifying and wave filtering circuit, and is based on this off-position, controls the work of power load 5
State switching.
In conclusion the flash switch detection circuit in the present invention can detecte the off state of external AC power source,
And the working condition of switching power load 5 is controlled based on this off-position.So that user cuts only by flash switch 6 is of short duration
The control to electric device working state can be realized in the power supply of circuit breaker equipment, ensure that power supply sets electric appliance
The duration of available electricity is set for user's intelligence using electric appliance so that wireless control electrical equipment is not limited by powerup issue
It is standby that convenience is provided.
Based on the above embodiment, in another embodiment of the present invention, as shown in Fig. 2, Fig. 2 is that the present invention is specific real
The structural schematic diagram of detection circuit provided in example is applied, which includes zener diode D1 and optocoupler Q1；
Zener diode D1 cathode is connected with the output end of current rectifying and wave filtering circuit 1, the anode input of anode and optocoupler Q1
End is connected；The negative input of optocoupler Q1 is grounded；
The collector of optocoupler Q1 is connected with the output end of DC-DC converter 3, emitter ground connection；
The current collection of optocoupler Q1 is extremely connected with control circuit 4, and is the output end IO1 of detection circuit 2.
Detection circuit in the present embodiment mainly includes zener diode D1 and optocoupler Q1.Zener diode D1 is a kind of rises
To the element of pressure stabilization function, when its pn-junction breakback, electric current very wide range changes and its voltage is held essentially constant, with dimension
Hold the stability of voltage.When the voltage of zener diode D1 input terminal is greater than burning voltage U1When, zener diode D1 conducting；When
The voltage of zener diode D1 input terminal is less than burning voltage U1, then zener diode D1 is disconnected.
In addition, having generally comprised inductively or capacitively equal energy-storage travelling wave tubes for current rectifying and wave filtering circuit 1.When its input terminal
When power-off, the DC bus-bar voltage of output is gradually reduced.Specifically, Fig. 3 can be referred to, Fig. 3 is the embodiment of the present invention
The coordinate diagram that changes over time of DC bus-bar voltage of current rectifying and wave filtering circuit output, abscissa is the time in Fig. 3, and initial time is
At the time of 1 input terminal of current rectifying and wave filtering circuit starts power-off, t0At the time of end for power-off, U0It is t0Moment corresponding rectifying and wave-filtering
The voltage value of the DC bus-bar voltage of circuit 1.As shown in Figure 3 since the input terminal of current rectifying and wave filtering circuit 1 down to leading again
Logical, which first drops rises afterwards.
Secondly, for DC-DC converter 3, when the voltage of its input terminal is greater than constant voltage U2When, the voltage of output end
For constant voltage U2, when the voltage of its input terminal is less than constant voltage U2When, the voltage of output end is 0.
When the input terminal normal ON AC power source of current rectifying and wave filtering circuit 1, the voltage of the cathode of zener diode D1 is big
In its burning voltage U1, so that the light emitting diode D2 in optocoupler Q1 shines, the collector of the phototriode VT in optocoupler Q1
It is connected with emitter；The collector of phototriode VT is equivalent to ground connection, and the output end IO1 of the detection circuit 2 exports low level.
When there is of short duration power-off because of user's operation flash switch 6 in 1 input terminal of current rectifying and wave filtering circuit, current rectifying and wave filtering circuit 1
The voltage of output end is fallen before, and when deteriorating to less than the burning voltage of zener diode D1, zener diode D1 is disconnected, optocoupler
Light emitting diode D2 in Q1 does not shine, and the collector and emitter of the triode in optocoupler Q1 disconnects.Detection circuit 2 at this time
Output end IO1 is connected with the supply voltage that DC-DC converter 3 exports, because 1 input terminal of current rectifying and wave filtering circuit is of short duration disconnected
Electricity, the DC bus-bar voltage that current rectifying and wave filtering circuit 1 exports under normal circumstances deteriorate to less than the constant voltage of DC-DC converter 3
U2Before, the input terminal of current rectifying and wave filtering circuit 1 just recloses AC power source.That is the output of DC-DC converter 3 power supply electricity
Pressure is constant voltage U2It is constant.So, 2 output end IO1 of detection circuit exports high level.Control circuit 4 is believed by the high level
The switching of the working condition to power load 5 number can be realized.
Optionally, in another embodiment of the present invention, as shown in figure 4, Fig. 4 be another embodiment of the present invention provides
Detection circuit structural schematic diagram, the detection circuit 2 further include:
The first resistor R1 being set between the cathode of zener diode D1 and the output end of current rectifying and wave filtering circuit 1；
And it is set to the second resistance R2 between the collector of optocoupler Q1 and the output end of DC-DC converter 3.
As previously mentioned, needing to require the cathode voltage of zener diode D1 to decline in the course of work of detection circuit 2
Speed is faster than the input terminal voltage decrease speed of DC-DC converter 3.In this regard, in addition to burning voltage U can be chosen1Greater than constant
Voltage U2Zener diode D1 except, can also the cathode of zener diode D1 connect first resistor R1, to two pole of pressure stabilizing
Pipe D1 is divided, and when so that zener diode D1 being worked normally, the input voltage of zener diode D1 is relatively small, whole
When stream 1 input terminal of filter circuit powers off, the input voltage of zener diode D1 just drops to burning voltage U faster1It
Under.
In addition, second resistance R2 is set between the output end of DC-DC converter 3 and the collector of phototriode VT,
The output end of DC-DC converter 3 is directly grounded when avoiding the collector and emitter connection of phototriode VT.
As previously mentioned, when whether the input terminal that detection circuit 2 detects current rectifying and wave filtering circuit 1 powers off, it is desirable that filtered in rectification
The voltage of 1 output end of wave circuit is being down to constant voltage U2Before, the input terminal of current rectifying and wave filtering circuit 1 just recloses alternating current
Source, detection circuit 2 can just detect of short duration this process of power-off.
But in practical applications, the input terminal power-off time length of current rectifying and wave filtering circuit 1 is opened with user's operation flash
6 time correlation is closed, if user's pressing operation flash 6 durations of switch are longer, 1 input terminal of current rectifying and wave filtering circuit is disconnected
The electric time just continues more to grow, and the lasting duration of user's pressing operation flash switch 6 be it is uncontrollable, can only substantially estimate one
Time span range, but unavoidably there is fortuitous event.
If the input terminal of current rectifying and wave filtering circuit 1 causes since the time of user's pressing operation flash switch 6 continues longer
The input terminal voltage of DC-DC converter 3 is lower than constant voltage U2, the supply voltage that will lead to the output of DC-DC converter 2 is
0, and then control circuit 4 is caused to power off.When the input terminal of current rectifying and wave filtering circuit 1 is again switched on AC power source, 4 weight of control circuit
It newly powers on, can not but judge to cause that control circuit 4 powers off is dodged due to grid cut-off or due to user's pressing operation
It disconnects and being powered off caused by closing 6 overlong times, thus can not determine the need for the working condition of switching power load 5.
For this purpose, in another specific embodiment of the invention, as shown in figure 5, Fig. 5 be another embodiment of the present invention provides sudden strain of a muscle
The structural schematic diagram of disconnected switch detection circuit can also further include:
Input terminal is connected with the output end of DC-DC converter 3, the discrimination circuit that output end is connected with control circuit 4
7, whether the power-off duration for detecting 1 input terminal of current rectifying and wave filtering circuit is more than preset duration, and generates output to control circuit 4
Second electrical level signal；
Working condition of the control circuit 4 based on second electrical level signal control power load 5.
It should be noted that being for power-off caused by user's operation flash switch 6 and the maximum difference of grid cut-off
It is different to power off duration.For this purpose, discrimination circuit 7 is accessed in the output end of DC-DC converter 3 in the present embodiment, when rectifying and wave-filtering electricity
When the off-position duration of the input terminal on road 1 is longer, the supply voltage that DC-DC converter 3 exports also just becomes 0, and DC-
The length for 0 this state duration of supply voltage that DC converter 3 exports also just determines that off-position is that user's operation is dodged
Disconnecting pass 6 leads to power-off or grid cut-off.The duration of output 0V voltage in the present embodiment based on DC-DC converter 3
The off state of circuit is distinguished, so that it is determined that whether control circuit 4 needs to switch the working condition of power load 5.
Specifically, as shown in fig. 6, Fig. 6 be another embodiment of the present invention provides discrimination circuit structural schematic diagram, the area
Parallel circuit 7 may include:
3rd resistor R3, the 4th resistance R4, capacitor C1, switching device Q2；
The first end of 3rd resistor R3 is connected with the output end of DC-DC converter 3, and the of second end and the 4th resistance R4
The first end of one end, the first end of capacitor C1 and switching device Q2 is connected；The second end and capacitor C1 of 4th resistance R4
Second end ground connection；The output end electrical connection of the second end and DC-DC converter 3 of switching device Q2, third end ground connection；
Wherein, when the voltage value of the first end of switching device Q2 is greater than preset voltage value, then the second of switching device Q2
End and the conducting of third end；When the voltage value of the first end of switching device Q2 is less than preset voltage value, then the of switching device Q2
Two ends and third end disconnect；And the second end of switching device Q2 is the output end of discrimination circuit 7.
As shown in figure 4, capacitor C1 starts to discharge, if in capacitor C1 when the supply voltage that DC-DC converter 3 exports is 0
Before electric discharge is completed completely, the supply voltage that DC-DC converter 3 exports becomes constant voltage U from 02, then illustrate rectifying and wave-filtering electricity
The power-off duration of 1 input terminal of road that is to say power-off caused by user's operation flash switch 6 within the scope of preset duration；Conversely, if
The electric energy of capacitor C1 is discharged completely after completion, then the supply voltage that DC-DC converter 3 exports becomes constant voltage U from 02,
The power-off duration for then illustrating current rectifying and wave filtering circuit input terminal is more than preset duration range, that is to say grid cut-off.
In conjunction with Fig. 6, when the supply voltage that DC-DC converter 3 exports becomes constant voltage U from 02It is to be put completely in capacitor C1
It is relatively large to capacitor C1 charging voltage before electricity is completed, so that the voltage value of switching device Q2 first end is greater than switching device
The conducting voltage of Q2, the second end of switching device Q2 and the conducting of third end, the output end IO2 of discrimination circuit 7 are equivalent to ground connection, area
7 output end IO2 of parallel circuit exports low level；And with the charging complete of capacitor C1, the first end voltage meeting of switching device Q2
Continue to increase, the second end of switching device Q2 and third end remain on state, and 7 output end IO2 of discrimination circuit continues defeated
Low level out.
When the supply voltage that DC-DC converter 3 exports becomes constant voltage U from 02It is to discharge completely completion in capacitor C1
Afterwards, relatively small to capacitor C1 charging voltage, cause the first end voltage of switching device Q1 to be less than conducting voltage, switching device Q1
Second end and third end disconnect, the output end IO2 of discrimination circuit 7 be equivalent to DC-DC converter 3 export supply voltage connects
Logical, the output end IO2 of discrimination circuit 7 exports high level；And as capacitor C1 charging gradually completes, the voltage at the both ends capacitor C1
It is gradually increased, until the voltage of capacitor C1 first end is greater than the conducting voltage of switching device Q2, the output end IO2 of discrimination circuit 7
Again ground connection output low level.
It can be seen that the output end IO2 of discrimination circuit 7 is to continue when for powering off caused by user's operation flash switch 6
Output low level；And when grid cut-off, the output end IO2 of discrimination circuit 7 is that first output high level exports low level again, by
This, control circuit 4 can control the working condition of power load 5 according to the electric signal of the output end IO2 of discrimination circuit 7.
Optionally, the switching device Q2 in the present embodiment can specifically use NPN type triode or NMOS tube.
If switching device Q2 is NPN type triode, the collector of NPN type triode and the output end phase of DC-DC converter 3
Connection, emitter ground connection, base stage are connected with the second end of 3rd resistor R3；
If switching device Q2 is NMOS tube, the drain electrode of NMOS tube is connected with the output end of DC-DC converter 3, and source electrode connects
Ground, grid are connected with the second end of 3rd resistor R3.
Further, it can also be set between the first end of switching device Q2 and the output end vo ut2 of DC-DC converter 3
The 5th resistance R5 is set, the level signal for the output end to discrimination circuit 7 is adjusted.
Based on above-mentioned any embodiment, in another embodiment of the present invention, can also further include:
Input terminal is connected with AC power source, the flash switch that output end is connected with the input terminal of current rectifying and wave filtering circuit 1
6；
Wherein, when flash switch 6 is controlled by operation, the access between current rectifying and wave filtering circuit 1 and AC power source is cut off；When
When flash switch 6 is not controlled by operation, the access between current rectifying and wave filtering circuit 1 and AC power source can be connect.
It should be noted that the flash switch 6 in the present embodiment in above-mentioned each embodiment for user that is, grasp
Make the flash switch 6 of of short duration power-off between control external power supply and electrical equipment.
The specific structure type of flash switch 6 in the present invention, can be can automatic rebounding button switch, such as computer
The power switch of host；Can also be can automatic rebounding rocker switch, such as the doorbell rocker switch of electronic door bell；It can be with
It is touch screen switch, when user's finger touch-control, circuit is disconnected, and when user's finger not touch-control, circuit is connected.There are also have class
It will not enumerate herein like the switch of functional structure.
It should be noted that the switch of the of short duration power-off of user's control illustrated in above-mentioned each embodiment is this implementation
Flash switch 6 in example.
Optionally, in another embodiment of the present invention, control circuit 4 further includes for receiving switching power load
The wireless communication module of the switching command of 5 working condition.
So, user the working condition to electrical equipment carry out control switching when, not only can using flash switch 6 into
Row control, can also be controlled by working condition of the wireless control apparatus to electrical equipment, be the intelligentized control of user
Electrical equipment provides convenience.
Specifically, the power load 5 in the present invention specifically can be lamps and lanterns, 1 output end of the lamps and lanterns and current rectifying and wave filtering circuit
It is connected, to obtain supply voltage, is also connected with the output end of control circuit 4, receives the control signal of control circuit 4.
In using lamps and lanterns as the embodiment of power load 5, control circuit 4 can control the working condition of lamps and lanterns bright
State and going out switches in state, the switching being also possible between manifold color-emitting, light emission luminance, to not limiting in this present invention
It is fixed.
Certainly the power load 5 in the present invention is also possible to the electricity consumption in other electrical equipments such as refrigerator, air-conditioning, TV
Load 5.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with it is other
The difference of embodiment, same or similar part may refer to each other between each embodiment.For being filled disclosed in embodiment
For setting, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is referring to method part
Explanation.
Claims (10)
1. a kind of flash switch detection circuit, which is characterized in that including current rectifying and wave filtering circuit, detection circuit, DC-DC converter and
Control circuit；
The input terminal of the current rectifying and wave filtering circuit and the input terminal electrical connection of AC power source, output end and the DC-DC converter
Input terminal be connected；
The electrical connection of the output end of the input terminal of the detection circuit and the current rectifying and wave filtering circuit, output end and the control circuit
Input terminal be connected；The control electricity is inputted for detecting the off-position of the current rectifying and wave filtering circuit input terminal, and generating
First level signal on road；
The control circuit is used to respond the working condition of the first level signal switching power load.
2. flash switch detection circuit as described in claim 1, which is characterized in that the detection circuit includes zener diode
And optocoupler；
The zener diode cathode is connected with the output end of the current rectifying and wave filtering circuit, and the anode of the positive and described optocoupler is defeated
Enter end to be connected；The negative input of the optocoupler is grounded；
The collector of the optocoupler is connected with the output end of the DC-DC converter, emitter ground connection；
The current collection of the optocoupler is extremely connected with the control circuit, and is the output end of the detection circuit.
3. flash switch detection circuit as claimed in claim 2, which is characterized in that the detection circuit further include:
The first resistor being set between the cathode of the zener diode and the output end of the current rectifying and wave filtering circuit；
And it is set to the second resistance between the collector of the optocoupler and the output end of the DC-DC converter.
4. flash switch detection circuit as described in claim 1, which is characterized in that further include that input terminal and the DC-DC become
The output end of parallel operation is connected, the discrimination circuit that output end is connected with the control circuit, for detecting the rectifying and wave-filtering
Whether the power-off duration of circuit input end is more than preset duration, and generates the second electrical level signal of output to the control circuit；
The control circuit controls the working condition of the power load based on the second electrical level signal.
5. flash switch detection circuit as claimed in claim 4, which is characterized in that the discrimination circuit include 3rd resistor,
4th resistance, capacitor, switching device；
The first end of the 3rd resistor is connected with the output end of the DC-DC converter, second end and the 4th resistance
First end, the first end of the first end of the capacitor and the switching device is connected；The second end of 4th resistance
And the second end ground connection of the capacitor；The electrical connection of the output end of the second end of the switching device and the DC-DC converter,
Third end ground connection；
Wherein, when the voltage value of the first end of the switching device is greater than preset voltage value, then the second of the switching device
End and the conducting of third end；When the voltage value of the first end of the switching device is less than preset voltage value, then the switching device
Second end and third end disconnect；And the second end of the switching device is the output end of the discrimination circuit.
6. flash switch detection circuit as claimed in claim 5, which is characterized in that the switching device is NPN type triode
Or NMOS tube.
7. flash switch detection circuit as claimed in claim 5, which is characterized in that the discrimination circuit further includes being arranged in institute
State the 5th resistance between the output end of DC-DC converter and the second end of the switching device.
8. flash switch detection circuit as described in any one of claim 1 to 7, which is characterized in that further include input terminal and institute
It states AC power source to be connected, the flash switch that output end is connected with the input terminal of the current rectifying and wave filtering circuit；
Wherein, it when the flash, which is switched, to be controlled by operation, cuts off between the current rectifying and wave filtering circuit and the AC power source
Access；When flash switch is not controlled by operation, can connect between the current rectifying and wave filtering circuit and the AC power source
Access.
9. flash switch detection circuit as claimed in claim 8, which is characterized in that the control circuit further includes for receiving
Switch the wireless communication module of the switching command of the working condition of power load.
10. flash switch detection circuit as claimed in claim 9, which is characterized in that further include and the current rectifying and wave filtering circuit
Output end and the lamps and lanterns that are connected of the control circuit output end；
The control circuit is used to control the work of the lamps and lanterns according to first level signal and the second electrical level signal
State.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2019/095557 WO2020011224A1 (en) | 2018-07-12 | 2019-07-11 | Flashoff switch detection circuit and electronic device including same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018107672722 | 2018-07-12 | ||
| CN201810767272.2A CN109041374A (en) | 2018-07-12 | 2018-07-12 | Flash switch detection circuit and Intelligent lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109963393A true CN109963393A (en) | 2019-07-02 |
| CN109963393B CN109963393B (en) | 2023-07-28 |
Family
ID=64640990
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810767272.2A Pending CN109041374A (en) | 2018-07-12 | 2018-07-12 | Flash switch detection circuit and Intelligent lamp |
| CN201910412305.6A Active CN109963393B (en) | 2018-07-12 | 2019-05-17 | Flash switch detection circuit |
| CN201920712281.1U Withdrawn - After Issue CN210670696U (en) | 2018-07-12 | 2019-05-17 | Detection circuit for flash switch |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810767272.2A Pending CN109041374A (en) | 2018-07-12 | 2018-07-12 | Flash switch detection circuit and Intelligent lamp |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920712281.1U Withdrawn - After Issue CN210670696U (en) | 2018-07-12 | 2019-05-17 | Detection circuit for flash switch |
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| Country | Link |
|---|---|
| CN (3) | CN109041374A (en) |
Cited By (3)
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| CN110412977A (en) * | 2019-08-29 | 2019-11-05 | 青岛亿联客信息技术有限公司 | A kind of test device for flash control equipment |
| CN110456286A (en) * | 2019-08-13 | 2019-11-15 | 深圳和而泰家居在线网络科技有限公司 | The control circuit and method of self-test power failure |
| WO2020011224A1 (en) * | 2018-07-12 | 2020-01-16 | 青岛亿联客信息技术有限公司 | Flashoff switch detection circuit and electronic device including same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019206263A1 (en) * | 2018-04-26 | 2019-10-31 | 青岛亿联客信息技术有限公司 | Intelligent lamp control system and detection circuit for temporary power-off switch thereof |
| CN109041374A (en) * | 2018-07-12 | 2018-12-18 | 青岛亿联客信息技术有限公司 | Flash switch detection circuit and Intelligent lamp |
| CN109890115B (en) * | 2019-04-19 | 2024-03-29 | 青岛易来智能科技股份有限公司 | Intelligent lamp control system and flashing control circuit thereof |
| CN110049608B (en) * | 2019-06-04 | 2022-09-09 | 青岛亿联客信息技术有限公司 | Intelligent lamp and control method thereof |
| CN110726931A (en) * | 2019-11-01 | 2020-01-24 | 北京小米移动软件有限公司 | On-off detection circuit of flash switch and electronic equipment |
| CN111123088A (en) * | 2020-01-04 | 2020-05-08 | 广东卓梅尼技术股份有限公司 | Elevator door lock detection circuit |
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| CN110412977A (en) * | 2019-08-29 | 2019-11-05 | 青岛亿联客信息技术有限公司 | A kind of test device for flash control equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109963393B (en) | 2023-07-28 |
| CN210670696U (en) | 2020-06-02 |
| CN109041374A (en) | 2018-12-18 |
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