CN207516436U - A kind of zero cross detection circuit applied to Intelligent toilet cover - Google Patents
A kind of zero cross detection circuit applied to Intelligent toilet cover Download PDFInfo
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- CN207516436U CN207516436U CN201721722381.XU CN201721722381U CN207516436U CN 207516436 U CN207516436 U CN 207516436U CN 201721722381 U CN201721722381 U CN 201721722381U CN 207516436 U CN207516436 U CN 207516436U
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Abstract
The utility model discloses a kind of zero cross detection circuits applied to Intelligent toilet cover,The closestool supply and AC electricity covered including being connected to intelligent closestool,Further include full bridge rectifier bridge heap U1,Optocoupler U2,Power VDD,Capacitance C1,Capacitance C6,Load resistance RL,Resistance R7,Resistance R8,Resistance R9,Resistance R10,Capacitance C5,Resistance R11,Resistance R12,Resistance R13,Resistance R16 and triode Q1,The power supply that power supply VDD is optocoupler U2,Full bridge rectifier bridge heap U1 includes four diodes,The base stage of triode Q1 is connect with resistance R13,Capacitance C6,Resistance R12 is connected to side by side between base stage and the emitter of triode Q1,The emitter of triode Q1 is connected to the earth,The collector series resistance R16 of triode Q1 is followed by power supply VDD.The utility model closestool supply and AC electricity voltage V3 when close to no-voltage so that no-voltage detection level Zero_DET output high level opens the silicon-controlled of toilet lid heating system, it is possible to reduce surge impact electric current improves total harmonic distortion at this moment.
Description
Technical field
The utility model is related to kitchen and bath's technological system more particularly to a kind of zero passage detection electricity applied to Intelligent toilet cover
Road.
Background technology
With the continuous development of smart home, Intelligent toilet cover also continues to develop；Wherein, hot water injection, seat ring heating etc.
Through becoming standard configuration.General heating opening and turning off, and electric main is applied to ceramics using SCR control heating circuit
The loads such as heating tube are heated.If do not opened in the zero of ac commercial power voltage it is silicon-controlled, may open moment generate
Larger surge current.
Utility model content
Part in view of the shortcomings of the prior art, the purpose of this utility model is to provide one kind to be applied to intelligent closestool
The zero cross detection circuit of lid can be detected Intelligent toilet cover supply and AC electrical input by detection circuit, to realize
To silicon-controlled progress, simply and effectively control makes data guidance, and solve the technical issues of harmonic wave and surge current.
The purpose of this utility model is achieved through the following technical solutions：
A kind of zero cross detection circuit applied to Intelligent toilet cover, the closestool covered including being connected to intelligent closestool, which is powered, to be handed over
Galvanic electricity, the voltage of closestool supply and AC electricity is V3, has opposite lowest electric potential point HOT_GND inside the Intelligent toilet cover.
The utility model further includes full bridge rectifier bridge heap U1, optocoupler U2, power supply VDD, capacitance C1, capacitance C6, load resistance RL, resistance
R7, resistance R8, resistance R9, resistance R10, capacitance C5, resistance R11, resistance R12, resistance R13, resistance R16 and triode Q1, institute
The power supply that power supply VDD is optocoupler U2 is stated, the full bridge rectifier bridge heap U1 includes four diodes, and four diodes are in two rows
Setting, first row diode centre have AC1 feet, have AC2 feet among second row diode, the full bridge rectifier bridge heap U1 exists
Positive terminal and negative terminals, the closestool supply and AC are respectively provided between first row diode and second row diode
The 1st end, the 2nd end of electricity connect one to one respectively with the AC1 feet of full bridge rectifier bridge heap U1, AC2 feet；The full bridge rectifier bridge heap
The negative terminals of U1 lowest electric potential point HOT_GND opposite with inside Intelligent toilet cover is electrically connected, full bridge rectifier bridge heap U1's
Positive terminal is electrically connected with the positive terminal of capacitance C1, and the load resistance RL is in parallel with capacitance C1, the capacitance C1's
Negative terminals lowest electric potential point HOT_GND opposite with inside Intelligent toilet cover is electrically connected；The closestool supply and AC electricity
1st end is sequentially connected in series resistance R7, resistance R9, and the 1st foot of the capacitance C5 is connect with resistance R8, the closestool supply and AC electricity
2nd end is sequentially connected in series resistance R8, resistance R10, and the 1st foot of the capacitance C5 is connect with resistance R10；The 2nd foot of the capacitance C5
Lowest electric potential point HOT_GND opposite with inside Intelligent toilet cover is electrically connected, and the resistance R11 is connected to the two of capacitance C5 side by side
Foot；The 1st foot of the optocoupler U2 is connect with the 1st foot of capacitance C5, the 2nd foot of the optocoupler U2 and the phase inside Intelligent toilet cover
Lowest electric potential point HOT_GND is electrically connected, the 4th foot of the optocoupler is connected to power supply VDD, the 3rd foot series electrical of the optocoupler
R13 is hindered, the base stage of the triode Q1 is connect with resistance R13, and the capacitance C6, resistance R12 are connected to triode Q1's side by side
Between base stage and emitter, the emitter of the triode Q1 is connected to the earth, the collector series resistance R16 of the triode Q1
It is followed by power supply VDD.
In order to which the utility model is better achieved, the 1st end of the closestool supply and AC electricity is zero line, and the closestool supplies
2nd end of electric alternating current is zero line side；Or the 1st end of the closestool supply and AC electricity is zero line side, the closestool power supply is handed over
2nd end of galvanic electricity is zero line.
Preferably, the resistance R7, resistance R8, resistance R9, resistance R10 are current-limiting resistance.
Preferably, the resistance R5, resistance R12, resistance R16 are current-limiting resistance.
Preferably, the capacitance C5, capacitance C6 are noise filtering capacitance.
Preferably, the 1st foot of the capacitance C5 is positive terminal, the 2nd foot of the capacitance C5 is negative terminals.
Preferably, the collector output no-voltage detection level Zero_DET of the triode Q1.
Preferably, the triode Q1 is NPN triode.
Preferably, the voltage V3 of the closestool supply and AC electricity is alternating current 220V.
The utility model compared with the prior art, has the following advantages and advantageous effect：
(1) the utility model can effectively solve toilet lid heating system by using above-mentioned simple circuit structure and adopt
With silicon-controlled the problems such as opening moment issuable surge current, and implement simple, economical.
(2) the utility model in the voltage V3 of closestool supply and AC electricity when close to no-voltage so that no-voltage detection electricity
Flat Zero_DET exports high level, opens the silicon-controlled of toilet lid heating system at this moment, it is possible to reduce surge impact electric current changes
Kind total harmonic distortion.
Description of the drawings
Fig. 1 is the circuit diagram of the utility model.
Specific embodiment
The utility model is described in further detail with reference to embodiment：
Embodiment
As shown in Figure 1, a kind of zero cross detection circuit applied to Intelligent toilet cover, cover including being connected to intelligent closestool
Closestool supply and AC electricity, the voltage of closestool supply and AC electricity is V3, has opposite lowest electric potential point inside Intelligent toilet cover
HOT_GND, with respect to the opposite lowest electric potential point that lowest electric potential point HOT_GND is all electronic components inside Intelligent toilet cover.
The utility model further includes full bridge rectifier bridge heap U1, optocoupler U2, power supply VDD, capacitance C1, capacitance C6, load resistance RL, resistance
R7, resistance R8, resistance R9, resistance R10, capacitance C5, resistance R11, resistance R12, resistance R13, resistance R16 and triode Q1 are supplied
Electric VDD is the power supply of optocoupler U2, and full bridge rectifier bridge heap U1 includes four diodes, and four diodes are set in two rows of, the
Among one row's diode there is AC1 feet, there is AC2 feet among second row diode, full bridge rectifier bridge heap U1 is in two pole of first row
Positive terminal and negative terminals, the 1st end of closestool supply and AC electricity, the 2nd are respectively provided between pipe and second row diode
End connects one to one respectively with the AC1 feet of full bridge rectifier bridge heap U1, AC2 feet.The negative terminals of full bridge rectifier bridge heap U1 with
Opposite lowest electric potential point HOT_GND electrical connections inside Intelligent toilet cover, the positive terminal and capacitance of full bridge rectifier bridge heap U1
The positive terminal electrical connection of C1, load resistance RL is in parallel with capacitance C1, in the negative terminals and Intelligent toilet cover of capacitance C1
The opposite lowest electric potential point HOT_GND electrical connections in portion.1st end of closestool supply and AC electricity is sequentially connected in series resistance R7, resistance R9, electricity
The 1st foot for holding C5 is connect with resistance R8, and the 2nd end of closestool supply and AC electricity is sequentially connected in series resistance R8, resistance R10, capacitance C5's
1st foot is connect with resistance R10.Opposite lowest electric potential point HOT_GND's the 2nd foot of capacitance C5 is electrically connected with inside Intelligent toilet cover
It connects, resistance R11 is connected to the bipod of capacitance C5 side by side.The 1st foot of optocoupler U2 is connect with the 1st foot of capacitance C5, and the 2nd of optocoupler U2 the
Foot lowest electric potential point HOT_GND opposite with inside Intelligent toilet cover is electrically connected, and the 4th foot of optocoupler is connected to power supply VDD, optocoupler
The 3rd foot series resistance R13, the base stage of triode Q1 connect with resistance R13, and capacitance C6, resistance R12 are connected to triode side by side
Between the base stage and emitter of Q1, the emitter of triode Q1 is connected to the earth (being greatly absolute lowest electric potential point), triode Q1
Collector series resistance R16 be followed by power supply VDD.
A preferred embodiment according to the present utility model, when the 1st end of closestool supply and AC electricity is zero line, closestool supplies
2nd end of electric alternating current is just zero line side；When the 1st end of closestool supply and AC electricity be zero line side, closestool supply and AC electricity the 2nd
End is just zero line.
A preferred embodiment according to the present utility model, resistance R7, resistance R8, resistance R9, resistance R10 are current limliting electricity
Resistance.
A preferred embodiment according to the present utility model, resistance R5, resistance R12, resistance R16 are current-limiting resistance.
A preferred embodiment according to the present utility model, capacitance C5, capacitance C6 are noise filtering capacitance.
A preferred embodiment according to the present utility model, the 1st foot of capacitance C5 are positive terminal, the 2nd of capacitance C5 the
Foot is negative terminals.
A preferred embodiment according to the present utility model, the collector output no-voltage detection level of triode Q1
Zero_DET。
A preferred embodiment according to the present utility model, triode Q1 are NPN triode.
A preferred embodiment according to the present utility model, the voltage V3 of closestool supply and AC electricity is alternating current 220V.
The operation principle of the utility model is as follows：
The wherein V3 of closestool supply and AC electricity is ac commercial power voltage 220VAC, for sine voltage, resistance R7, resistance
R8, resistance R9, resistance R10 are current-limiting resistance, when between the 1st foot of the V3 voltages of closestool supply and AC electricity more than optocoupler U2, the 2nd foot
During forward conduction voltage (about 1V), the 3rd foot of optocoupler U2 secondary, the conducting of the 4th foot, VDD power supplies by the 4th foot of optocoupler, the 3rd foot and
The current-limiting resistance R13 of series connection causes triode Q1 saturation conductions, the collector terminal output no-voltage detection level of triode Q1
The output of Zero_DET is low level；Conversely, when the V3 voltages of closestool supply and AC electricity are less than forward direction between the 1st of optocoupler U2 the, 2 feet
During conducting voltage, the 3rd, 4 foot no currents of optocoupler U2 secondary flow through, triode Q1 cut-offs, the collector terminal output of triode Q1
The output of no-voltage detection level Zero_DET is high level；Wherein resistance R5, resistance R12, resistance R16 are current-limiting resistance, electric
It is noise filtering capacitance to hold C5, capacitance C6.
It, can be in ac commercial power voltage when close to no-voltage by foregoing circuit so that no-voltage detection level Zero_
DET exports high level, if opening the silicon-controlled of toilet lid heating system at this moment, it is possible to reduce surge impact electric current improves
Total harmonic distortion.
The utility model can effectively solve toilet lid heating system by using above-mentioned simple circuit structure and use
Silicon-controlled the problems such as opening moment issuable surge current, and implement simple, economical.The utility model is powered in closestool
The voltage V3 of alternating current is when close to no-voltage so that no-voltage detection level Zero_DET output high level, it is open-minded at this moment
Toilet lid heating system it is silicon-controlled, it is possible to reduce surge impact electric current, improve total harmonic distortion.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (9)
1. a kind of zero cross detection circuit applied to Intelligent toilet cover, the closestool supply and AC covered including being connected to intelligent closestool
Electricity, the voltage of closestool supply and AC electricity is V3, has opposite lowest electric potential point HOT_GND inside the Intelligent toilet cover,
It is characterized in that：Further include full bridge rectifier bridge heap U1, optocoupler U2, power supply VDD, capacitance C1, capacitance C6, load resistance RL, resistance R7,
Resistance R8, resistance R9, resistance R10, capacitance C5, resistance R11, resistance R12, resistance R13, resistance R16 and triode Q1, the confession
Electric VDD is the power supply of optocoupler U2, and the full bridge rectifier bridge heap U1 includes four diodes, and four diodes are set in two rows
It puts, there is among first row diode AC1 feet, there is AC2 feet among second row diode, the full bridge rectifier bridge heap U1 is the
Positive terminal and negative terminals, the closestool supply and AC electricity are respectively provided between one row's diode and second row diode
The 1st end, the 2nd end connects one to one respectively with the AC1 feet of full bridge rectifier bridge heap U1, AC2 feet；The full bridge rectifier bridge heap U1
Negative terminals lowest electric potential point HOT_GND opposite with inside Intelligent toilet cover be electrically connected, full bridge rectifier bridge heap U1 is just
Pole terminals are electrically connected with the positive terminal of capacitance C1, and the load resistance RL is in parallel with capacitance C1, and the capacitance C1's is negative
Terminals lowest electric potential point HOT_GND opposite with inside Intelligent toilet cover in pole is electrically connected；The 1st of the closestool supply and AC electricity
End is sequentially connected in series resistance R7, resistance R9, and the 1st foot of the capacitance C5 is connect with resistance R8, and the 2nd of the closestool supply and AC electricity the
End is sequentially connected in series resistance R8, resistance R10, and the 1st foot of the capacitance C5 is connect with resistance R10；The 2nd foot and intelligence of the capacitance C5
Opposite lowest electric potential point HOT_GND electrical connections inside energy toilet lid, the resistance R11 are connected to the bipod of capacitance C5 side by side；
The 1st foot of the optocoupler U2 is connect with the 1st foot of capacitance C5, and the 2nd foot of the optocoupler U2 is opposite with inside Intelligent toilet cover
Lowest electric potential point HOT_GND is electrically connected, and the 4th foot of the optocoupler is connected to power supply VDD, the 3rd foot series resistance of the optocoupler
R13, the base stage of the triode Q1 are connect with resistance R13, and the capacitance C6, resistance R12 are connected to the base of triode Q1 side by side
Between pole and emitter, the emitter of the triode Q1 is connected to greatly, after the collector series resistance R16 of the triode Q1
It is connected to power supply VDD.
2. a kind of zero cross detection circuit applied to Intelligent toilet cover described in accordance with the claim 1, it is characterised in that：The horse
1st end of bucket supply and AC electricity is zero line, and the 2nd end of the closestool supply and AC electricity is zero line side；Or the closestool supplies
1st end of electric alternating current is zero line side, and the 2nd end of the closestool supply and AC electricity is zero line.
3. a kind of zero cross detection circuit applied to Intelligent toilet cover described in accordance with the claim 1, it is characterised in that：The electricity
It is current-limiting resistance to hinder R7, resistance R8, resistance R9, resistance R10.
4. a kind of zero cross detection circuit applied to Intelligent toilet cover described in accordance with the claim 1, it is characterised in that：The electricity
It is current-limiting resistance to hinder R5, resistance R12, resistance R16.
5. a kind of zero cross detection circuit applied to Intelligent toilet cover described in accordance with the claim 1, it is characterised in that：The electricity
Hold C5, capacitance C6 is noise filtering capacitance.
6. according to a kind of zero cross detection circuit applied to Intelligent toilet cover described in claim 1 or 5, it is characterised in that：Institute
The 1st foot for stating capacitance C5 is positive terminal, and the 2nd foot of the capacitance C5 is negative terminals.
7. a kind of zero cross detection circuit applied to Intelligent toilet cover described in accordance with the claim 1, it is characterised in that：Described three
The collector output no-voltage detection level Zero_DET of pole pipe Q1.
8. according to a kind of zero cross detection circuit applied to Intelligent toilet cover described in claim 1 or 7, it is characterised in that：Institute
Triode Q1 is stated as NPN triode.
9. according to a kind of zero cross detection circuit applied to Intelligent toilet cover described in claims 1 or 2, it is characterised in that：Institute
The voltage V3 for stating closestool supply and AC electricity is alternating current 220V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721722381.XU CN207516436U (en) | 2017-12-12 | 2017-12-12 | A kind of zero cross detection circuit applied to Intelligent toilet cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721722381.XU CN207516436U (en) | 2017-12-12 | 2017-12-12 | A kind of zero cross detection circuit applied to Intelligent toilet cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207516436U true CN207516436U (en) | 2018-06-19 |
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ID=62544134
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721722381.XU Active CN207516436U (en) | 2017-12-12 | 2017-12-12 | A kind of zero cross detection circuit applied to Intelligent toilet cover |
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| CN (1) | CN207516436U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110146736A (en) * | 2019-06-11 | 2019-08-20 | 珠海格力电器股份有限公司 | Power zero-crossing detection circuit, circuit for controlling motor, power supply zero passage detection method and driving method |
| EP4202449A1 (en) * | 2021-12-22 | 2023-06-28 | Hangzhou Lianxintong Semiconductor Co., Ltd. | Zero-crossing detection circuit |
-
2017
- 2017-12-12 CN CN201721722381.XU patent/CN207516436U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110146736A (en) * | 2019-06-11 | 2019-08-20 | 珠海格力电器股份有限公司 | Power zero-crossing detection circuit, circuit for controlling motor, power supply zero passage detection method and driving method |
| EP4202449A1 (en) * | 2021-12-22 | 2023-06-28 | Hangzhou Lianxintong Semiconductor Co., Ltd. | Zero-crossing detection circuit |
| US11835553B2 (en) | 2021-12-22 | 2023-12-05 | Hangzhou Lianxintong Semiconductor Co., Ltd. | Zero-crossing detection circuit |
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