CN107167745A - A kind of air-conditioning actuator voltage power sense circuit and method - Google Patents
A kind of air-conditioning actuator voltage power sense circuit and method Download PDFInfo
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- CN107167745A CN107167745A CN201710250895.8A CN201710250895A CN107167745A CN 107167745 A CN107167745 A CN 107167745A CN 201710250895 A CN201710250895 A CN 201710250895A CN 107167745 A CN107167745 A CN 107167745A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/40—Testing power supplies
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/40—Testing power supplies
- G01R31/42—AC power supplies
Abstract
The invention discloses a kind of air-conditioning actuator voltage power sense circuit and method, the circuit includes detection unit and processing unit, and detection unit includes positive test side, negative test side, the first one-way circuit, energy storage circuit, pressure-controlled spacing output circuit；Positive test side is connected to negative test side via first one-way circuit, energy storage circuit successively；Pressure-controlled spacing output circuit is in parallel with energy storage circuit, and the output end of pressure-controlled spacing output circuit is connected with processing unit；The present invention need not determine the concrete numerical value of input voltage, but combined first with one-way circuit and energy storage circuit, one-way circuit is turned on entirely under d.c. current, in alternating current, turn-on frequency is consistent with ac frequency, the voltage of energy storage circuit can reflect the type of input voltage and the frequency of alternating current, then export the voltage detection signal of the voltage type of reflection energy storage circuit and the frequency of alternating current by pressure-controlled spacing output circuit, of the invention simple in construction, cost is low, and reliability is high.
Description
Technical field
The present invention relates to electric automobiles, more particularly to a kind of air-conditioning actuator voltage power sense circuit and method.
Background technology
In the electronic refrigerator vehicle air-conditioning driver of dual power supply, refrigerator vehicle air-conditioning driver need simultaneously support direct current with
And the input of electric main, it is therefore desirable to detect frequency when type and the exchange input of input power.Existing solution party
Case is to carry out partial pressure sampling using high resistant, but this scheme can not meet vehicle high-voltage insulating requirements, can reduce vehicle insulation.
To solve such a problem, another scheme is improved to this scheme, first carry out high resistance sectional pressure reuse linear optical coupling carry out every
From sampling, this scheme using linear optical coupling due to causing cost high.
The content of the invention
The technical problem to be solved in the present invention is, for the drawbacks described above of prior art, there is provided a kind of air-conditioning driver
Voltage power sense circuit and method.
The technical solution adopted for the present invention to solve the technical problems is：Construct a kind of air-conditioning actuator voltage source detection electricity
Road, applied to dual power supply air-conditioning driver, including detection unit and processing unit, the detection unit includes being used for and driver
The positive test side of the positive pole connection of voltage source, the negative test side being connected for the negative pole with actuator voltage source, the first unidirectional electricity
Road, energy storage circuit, pressure-controlled spacing output circuit；The positive test side is successively via first one-way circuit, the accumulation of energy
Circuit is connected to the negative test side；The pressure-controlled spacing output circuit is in parallel with the energy storage circuit, and described pressure-controlled
The output end of spacing output circuit is connected with the processing unit；
Wherein, first one-way circuit is at direct current or the actuator voltage source in the actuator voltage source
Turn on, and end when the actuator voltage source is in the negative semiaxis of alternating current when the positive axis of alternating current；It is described to store
Can circuit accumulation of energy and generation and positively related voltage in actuator voltage source when first one-way circuit is turned on；The pressure
The voltage output voltage detection signal that control formula spacing output circuit is produced according to the energy storage circuit；The processing unit is used for root
According to the voltage detection signal of the pressure-controlled spacing output circuit output determine the actuator voltage source type and
Power supply state, and it is determined that the actuator voltage source determines the frequency of alternating current when being alternating current.
In air-conditioning actuator voltage power sense circuit of the present invention,
The voltage detection signal is not more than including the pressure-controlled spacing output circuit in the voltage of the energy storage circuit
The first level signal for being exported during the first preset value and/or when the voltage of the energy storage circuit is more than first preset value it is defeated
The second electrical level signal gone out；
The processing unit is used for the first level signal and/or second exported according to the pressure-controlled spacing output circuit
Level signal, determines the type and power supply state in the actuator voltage source, and it is determined that the actuator voltage source is friendship
The frequency of alternating current is determined during stream electricity.
In air-conditioning actuator voltage power sense circuit of the present invention, the processing unit includes：
Power down determination subelement, for persistently exporting first level detecting the pressure-controlled spacing output circuit
During signal, actuator voltage source power down is determined；
Direct current determination subelement, for detect the pressure-controlled spacing output circuit persistently export it is described second electricity
During ordinary mail, the type for determining the actuator voltage source is direct current；
Alternating current and its frequency determination subelement, for detecting the pressure-controlled spacing output circuit interval output institute
When stating the first level signal, the second electrical level signal, the type for determining the actuator voltage source is alternating current, and will be described
The switching frequency of first level signal and the second electrical level signal as the alternating current frequency.
In air-conditioning actuator voltage power sense circuit of the present invention, the detection circuit also includes the second unidirectional electricity
Road, the negative test side connects the positive test side via second one-way circuit；Second one-way circuit drives described
Dynamic device voltage source is direct current or ended when the actuator voltage source is in the positive axis of alternating current, and is driven described
Dynamic device voltage source is turned on when being in the negative semiaxis of alternating current.
In air-conditioning actuator voltage power sense circuit of the present invention, the pressure-controlled spacing output circuit includes：
Voltage turn-on sub-circuit, in the voltage of the energy storage circuit more than the second preset value after from cut-off state enter
Conducting state；
Isolation and amplifier sub-circuit, for the output low level when the voltage turn-on sub-circuit is in cut-off state or high electricity
The first flat level signal, high level or low level second electricity are exported when the voltage turn-on sub-circuit is in the conduction state
Ordinary mail number.
In air-conditioning actuator voltage power sense circuit of the present invention, the air-conditioning actuator voltage power sense circuit
Also include the first current-limiting resistance, first one-way circuit includes the first diode, and second one-way circuit includes the two or two
Pole pipe, the energy storage circuit includes electric capacity, and the voltage turn-on sub-circuit includes the second current-limiting resistance, the 3rd diode, described
Isolation and amplifier sub-circuit includes photo-coupler, pull down resistor, and the photo-coupler includes the 4th diode and photosensitive semiconductor pipe；
The positive pole of second diode connects the negative test side, and the negative pole of second diode is via described first
Current-limiting resistance is connected to the positive test side, and the positive pole of first diode is connected to the negative pole of second diode, institute
The negative pole of the first diode is stated via test side is born described in the capacitance connection, the negative pole of first diode is also via described
Second current-limiting resistance is connected to the negative pole of the 3rd diode, and the positive pole of the 3rd diode is connected to the 4th diode
Positive pole, the negative pole of the 4th diode connects the negative test side, and the transmitting collection of the photosensitive semiconductor pipe connects the place
Manage unit and be grounded via the pull down resistor, the colelctor electrode connection internal electric source of the photosensitive semiconductor pipe.
The invention also discloses a kind of air-conditioning actuator voltage source detection method based on described detection circuit, including：
According to the type in actuator voltage source and state output voltage detection signal；
According to the voltage detection signal, the type and power supply state in the actuator voltage source are determined, and true
The fixed actuator voltage source determines the frequency of the alternating current when being alternating current.
In air-conditioning actuator voltage source detection method of the present invention, the voltage detection signal includes the first level
Signal and/or second electrical level signal；
Determining the type in the actuator voltage source includes：When detecting lasting output second electrical level signal, it is determined that driving
The type of dynamic device voltage source is direct current；When detecting the first level signal of interval output, second electrical level signal, it is determined that driving
The type of device voltage source is alternating current.
In air-conditioning actuator voltage source detection method of the present invention, the power supply shape in the actuator voltage source is determined
State includes：When detecting the first level signal of lasting output, the power down of actuator voltage source is determined.
In air-conditioning actuator voltage source detection method of the present invention, determining the frequency of the alternating current includes：Will
The switching frequency of first level signal and the second electrical level signal as alternating current frequency.
Implement the air-conditioning actuator voltage power sense circuit and method of the present invention, have the advantages that：The present invention
The concrete numerical value of input voltage need not be determined, but is combined first with one-way circuit and energy storage circuit, one-way circuit is in direct current
The lower full conducting of electricity, in alternating current, turn-on frequency is consistent with ac frequency, and the voltage of energy storage circuit can reflect input voltage
Type and alternating current frequency, then by pressure-controlled spacing output circuit export reflect energy storage circuit voltage type and
The voltage detection signal of the frequency of alternating current, the present invention is simple in construction, and cost is low, and reliability is high.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings：
Fig. 1 is that the circuit of the detection unit in the preferred embodiment of the air-conditioning actuator voltage power sense circuit of the present invention is former
Reason figure.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give the exemplary embodiments of the present invention.But, the present invention can be realized in many different forms, however it is not limited to this paper institutes
The embodiment of description.On the contrary, the purpose that these embodiments are provided be make to the disclosure more it is thorough comprehensively.
It should be noted that herein presented word " equal ", " identical " " simultaneously " or other similar terms, no
Be limited to it is absolute equal or identical in mathematical term, implement this patent described in right when, can be close on engineering significance
Or in acceptable error range.Word " connected " or " connection " or other similar terms, not only including by two
Individual entity is joined directly together, also including being indirectly connected to by other entities with beneficial improvement.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
The term comprising ordinal number such as " first ", " second " for being used in this specification can be used for illustrating various inscapes,
But these inscapes are not limited by these terms.It is only that using the purpose of these terms and distinguishes an inscape
In other inscapes.For example, on the premise of the interest field of the present invention is not departed from, the first inscape can be named as the
Two inscapes, similarly, the second inscape can also be named as the first inscape.This term of "and/or" includes
A certain item in the multiple related record projects of combination of multiple related record projects.
In order to be better understood from technical scheme, below in conjunction with Figure of description and specific embodiment
Technical scheme is described in detail, it should be understood that the specific features in the embodiment of the present invention and embodiment are
To the detailed description of technical scheme, rather than the restriction to technical scheme, in the case where not conflicting, this
Technical characteristic in inventive embodiments and embodiment can be mutually combined.
In preferred embodiment, air-conditioning actuator voltage power sense circuit includes detection unit and processing unit, the detection list
Member is connected to processing unit.With reference to Fig. 1, in preferred embodiment, the detection unit includes：Positive test side L1, negative test side L2,
First one-way circuit 100, the second one-way circuit 200, energy storage circuit 300, pressure-controlled spacing output circuit 400.Wherein, positive detection
End L1 is connected to negative test side L2 via first one-way circuit 100, energy storage circuit 300 successively；Negative test side L2 is via institute
State the second one-way circuit 200 and connect positive test side L1；Pressure-controlled spacing output circuit 400 is in parallel with energy storage circuit 300 and voltage-controlled
The output end VOUT of formula spacing output circuit 400 is connected with processing unit.
Wherein, positive test side L1 is used to be connected with the positive pole in actuator voltage source, and bearing test side L2 is used for and driver electricity
The negative pole connection of potential source；First one-way circuit 100 is that direct current or actuator voltage source are in exchange in actuator voltage source
Turn on, and end when actuator voltage source is in the negative semiaxis of alternating current during the positive axis of electricity；Second one-way circuit 200 exists
Actuator voltage source is ended for direct current or when actuator voltage source is in the positive axis of alternating current, and in driver electricity
Potential source is turned on when being in the negative semiaxis of alternating current；Energy storage circuit 300 accumulation of energy and generation and drive when the first one-way circuit 100 is turned on
The positively related voltage of dynamic device voltage source；The voltage output that pressure-controlled spacing output circuit 400 is produced according to the energy storage circuit 300
Voltage detection signal；The processing unit is used for the voltage detection signal exported according to the pressure-controlled spacing output circuit
The type and power supply state in actuator voltage source are determined, and it is determined that actuator voltage source determines alternating current when being alternating current
Frequency.
In the present embodiment, the voltage detection signal includes electricity of the pressure-controlled spacing output circuit 400 in energy storage circuit 300
Pressure exports the first level signal and/or when the voltage of energy storage circuit 300 is more than the first preset value when being not more than the first preset value
Export second electrical level signal；The processing unit is used for the first level signal exported according to pressure-controlled spacing output circuit 400
And/or second electrical level signal, the type and power supply state in actuator voltage source are determined, and it is determined that actuator voltage source is
The frequency of alternating current is determined during alternating current.
It should be noted that in theory, the first preset value can be the positive axis in alternating current (not including there is peak value electricity
At the time of pressure) when energy storage circuit 300 by the magnitude of voltage occurred.In order to ensure reliability, typically take and be in just half in alternating current
The crest voltage of axle 1/3 to 2/3 when energy storage circuit 300 produced by voltage.For example, if the crest voltage of alternating current is
300V, it is proposed that the first preset value is taken in the arbitrary value between alternating current voltage reaches 100-200V produced by energy storage circuit 300
Voltage.Herein it should be noted that the voltage produced by energy storage circuit 300 is not only relevant with the voltage of alternating current, also with
The relating to parameters of itself, thus specific first preset value be how many will also according to selected energy storage circuit 300 specifically determine.With
Exemplified by voltage when alternating current voltage reaches 100V produced by energy storage circuit 300 is as the first preset value, if the electric capacity chosen
As energy storage circuit 300, then at the time of alternating current changes to 100V from 0V, the voltage produced by electric capacity is first default
Value.
Wherein, the processing unit includes：
Power down determination subelement, for persistently exporting the first level signal detecting pressure-controlled spacing output circuit 400
When, determine the power down of actuator voltage source；For example in the present embodiment the first level signal is low level.
Direct current determination subelement, for detect pressure-controlled spacing output circuit 400 persistently export second electrical level letter
Number when, determine actuator voltage source type be direct current；For example in the present embodiment second electrical level signal is high level.
Alternating current and its frequency determination subelement, for detecting pressure-controlled spacing output circuit 400 interval output the
When one level signal, second electrical level signal, the type for determining actuator voltage source is alternating current, and by the first level signal and the
The switching frequency of two level signals as alternating current frequency.
Wherein, pressure-controlled spacing output circuit 400 includes：
Voltage turn-on sub-circuit, in the voltage of energy storage circuit 300 more than the second preset value after from cut-off state enter
Conducting state；
Isolation and amplifier sub-circuit, for output low level or high level when voltage turn-on sub-circuit is in cut-off state
First level signal, high level or low level second electrical level signal are exported when voltage turn-on sub-circuit is in the conduction state.
In preferred embodiment, the air-conditioning actuator voltage power sense circuit also includes the first current-limiting resistance R1, and first is single
Include the first diode D1 to circuit 100, the second one-way circuit 200 includes the second diode D2, and energy storage circuit 300 includes electric capacity
C1, voltage turn-on sub-circuit includes the second current-limiting resistance R2, the 3rd diode ZD1, and isolation and amplifier sub-circuit includes photo-coupler
U1, pull down resistor R3, the photo-coupler U1 include the 4th diode and photosensitive semiconductor pipe；It is preferred that, the 3rd diode ZD1
For Zener diode, the 4th diode is light emitting diode.
Positive pole the connection negative test side L2, the second diode D2 of the second diode D2 negative pole are via the described first limit
Leakage resistance R1 is connected to positive test side L1, and the first diode D1 positive pole is connected to the second diode D2 negative pole, the one or two pole
Pipe D1 negative pole bears test side L2 via the electric capacity C1 connections, and the first diode D1 negative pole is also via the second current-limiting resistance R2
The 3rd diode ZD1 negative pole is connected to, the 3rd diode ZD1 positive pole is connected to the positive pole of the 4th diode, the four or two pole
The negative test side L2 of negative pole connection of pipe, the transmitting collection of photosensitive semiconductor pipe connects processing unit and connect via pull down resistor R3
Ground, the colelctor electrode connection internal electric source VCC of photosensitive semiconductor pipe.
It should be noted that second preset value of the present embodiment is one of the first preset value in its theoretical span
Feasible numerical value.In fact, second preset value of the present embodiment is determined by the concrete structure of the present embodiment, because the present embodiment
The conducting and cut-off of middle voltage turn-on sub-circuit are actually the conducting and cut-off control of Zener diode, so the second preset value
Magnitude of voltage when being turned on for the 3rd diode ZD1 on electric capacity C1, it is clear that the second preset value is resistance R2 pressure drop, light emitting diode
Conduction voltage drop, the 3rd diode ZD1 conduction voltage drop sum.
It is understood that the circuit of photosensitive semiconductor pipe side is not limited to this, for example, it can also be substituted with pull-up resistor
Pull down resistor R3, processing unit is connected by the colelctor electrode of photosensitive semiconductor pipe, at the same by the colelctor electrode of photosensitive semiconductor pipe via
Pull-up resistor connects internal electric source VCC, the grounded emitter of photosensitive semiconductor pipe.Furthermore it is also possible in two one-way circuits
Current-limiting resistance is set respectively.
The operation principle of preferred embodiment is：
When there is single-phase AC voltage input, by taking sinusoidal voltage as an example, sinusoidal voltage is in positive axis, and diode D2 is cut
Only, sinusoidal voltage passes through current-limiting resistance R1, is carrying out halfwave rectifier by diode D1, energy storage is carried out in C1, when C1 voltages foot
When enough high, the 3rd diode ZD1 will be punctured, photo-coupler U1 conductings, output VOUT level is uprised, when the reduction of input voltage amplitude
When, the upper voltages of C1 reduce, and the 3rd diode ZD1 can not be turned on, and photo-coupler U1 shut-offs, output VOUT becomes low level；Sinusoidal electricity
When being pressed in negative semiaxis, diode D1 cut-offs, D2 conductings, photo-coupler U1 continues off state.As fully visible, when there is single phase ac
During control source, VOUT is the pulse square wave signal of one and input signal same frequency.VOUT signals give the place of processing unit
Manage device, you can detect whether the frequency of exchange input and exchange input.When not having control source, photo-coupler U1 can not
Shut-off, VOUT signals are a lasting low level signals.When input is direct current, C1 voltages are constant DC voltage, light
Coupler U1 is constantly on, and VOUT signals are a lasting high level signals.
Based on same inventive concept, the invention also discloses a kind of air-conditioning actuator voltage source inspection based on the detection circuit
Survey method, method includes：
S100, the type according to actuator voltage source and state output voltage detection signal；
S200, according to the voltage detection signal, determine the type and power supply state in actuator voltage source, and true
Fixed driver voltage source determines the frequency of alternating current when being alternating current.
In the present embodiment, the voltage detection signal includes the first level signal and/or second electrical level signal；
Wherein it is determined that the type in actuator voltage source includes：When detecting lasting output second electrical level signal, it is determined that driving
The type of dynamic device voltage source is direct current；When detecting the first level signal of interval output, second electrical level signal, it is determined that driving
The type of device voltage source is alternating current.
Wherein it is determined that the power supply state in actuator voltage source includes：When detecting the first level signal of lasting output, really
Fixed driver voltage source power down.
Wherein it is determined that the frequency of alternating current includes：Using the switching frequency of the first level signal and second electrical level signal as
The frequency of alternating current.
In summary, the air-conditioning actuator voltage power sense circuit and method of the present invention is implemented, with following beneficial effect
Really：The present invention need not determine the concrete numerical value of input voltage, but be combined first with one-way circuit and energy storage circuit, unidirectional electricity
Road is turned on entirely under d.c. current, and in alternating current, turn-on frequency is consistent with ac frequency, and the voltage of energy storage circuit can reflect
The type of input voltage and the frequency of alternating current, then the voltage for reflecting energy storage circuit is exported by pressure-controlled spacing output circuit
The voltage detection signal of type and the frequency of alternating current, the present invention is simple in construction, and cost is low, and reliability is high.
Embodiments of the invention are described above in conjunction with accompanying drawing, but the invention is not limited in above-mentioned specific
Embodiment, above-mentioned embodiment is only schematical, rather than restricted, one of ordinary skill in the art
Under the enlightenment of the present invention, in the case of present inventive concept and scope of the claimed protection is not departed from, it can also make a lot
Form, these are belonged within the protection of the present invention.
Claims (10)
1. a kind of air-conditioning actuator voltage power sense circuit, applied to dual power supply air-conditioning driver, it is characterised in that including detection
Unit and processing unit, the detection unit include be used for be connected with the positive pole in actuator voltage source positive test side, for
The negative test side of the negative pole connection in actuator voltage source, the first one-way circuit, energy storage circuit, pressure-controlled spacing output circuit；Institute
State positive test side and be connected to the negative test side via first one-way circuit, the energy storage circuit successively；It is described pressure-controlled
Spacing output circuit is in parallel with the energy storage circuit, and the output end and the processing unit of the pressure-controlled spacing output circuit
Connection；
Wherein, first one-way circuit is that direct current or the actuator voltage source are in and handed in the actuator voltage source
Turn on, and end when the actuator voltage source is in the negative semiaxis of alternating current during the positive axis for flowing electricity；The accumulation of energy electricity
Road accumulation of energy and generation and positively related voltage in actuator voltage source when first one-way circuit is turned on；It is described pressure-controlled
The voltage output voltage detection signal that spacing output circuit is produced according to the energy storage circuit；The processing unit is used for according to institute
The voltage detection signal for stating pressure-controlled spacing output circuit output determines type and the power supply in the actuator voltage source
State, and it is determined that the actuator voltage source determines the frequency of alternating current when being alternating current.
2. air-conditioning actuator voltage power sense circuit according to claim 1, it is characterised in that
The voltage detection signal is not more than first including the pressure-controlled spacing output circuit in the voltage of the energy storage circuit
The first level signal for being exported during preset value and/or export when the voltage of the energy storage circuit is more than first preset value
Second electrical level signal；
The processing unit is used for the first level signal and/or the second electrical level exported according to the pressure-controlled spacing output circuit
Signal, determines the type and power supply state in the actuator voltage source, and it is determined that the actuator voltage source is alternating current
When determine the frequency of alternating current.
3. air-conditioning actuator voltage power sense circuit according to claim 2, it is characterised in that the processing unit bag
Include：
Power down determination subelement, for persistently exporting first level signal detecting the pressure-controlled spacing output circuit
When, determine actuator voltage source power down；
Direct current determination subelement, for persistently exporting second electrical level letter detecting the pressure-controlled spacing output circuit
Number when, determine the actuator voltage source type be direct current；
Alternating current and its frequency determination subelement, for detecting the pressure-controlled spacing output circuit interval output described the
When one level signal, the second electrical level signal, the type for determining the actuator voltage source is alternating current, and by described first
The switching frequency of level signal and the second electrical level signal as the alternating current frequency.
4. air-conditioning actuator voltage power sense circuit according to claim 2, it is characterised in that the detection circuit is also wrapped
The second one-way circuit is included, the negative test side connects the positive test side via second one-way circuit；Described second is unidirectional
Circuit ends in the actuator voltage source for direct current or when the actuator voltage source is in the positive axis of alternating current,
And turned on when the actuator voltage source is in the negative semiaxis of alternating current.
5. air-conditioning actuator voltage power sense circuit according to claim 4, it is characterised in that the pressure-controlled isolation is defeated
Going out circuit includes：
Voltage turn-on sub-circuit, in the voltage of the energy storage circuit more than the second preset value after from cut-off state enter turn on
State；
Isolation and amplifier sub-circuit, for output low level or high level when the voltage turn-on sub-circuit is in cut-off state
First level signal, high level or low level second electrical level letter are exported when the voltage turn-on sub-circuit is in the conduction state
Number.
6. air-conditioning actuator voltage power sense circuit according to claim 5, it is characterised in that the air-conditioning driver electricity
Power sense circuit is pressed also to include the first current-limiting resistance, first one-way circuit includes the first diode, the described second unidirectional electricity
Road includes the second diode, and the energy storage circuit includes electric capacity, and the voltage turn-on sub-circuit includes the second current-limiting resistance, the 3rd
Diode, the isolation and amplifier sub-circuit includes photo-coupler, pull down resistor, and the photo-coupler includes the 4th diode and light
Sensitive semiconductor pipe；
The positive pole of second diode connects the negative test side, and the negative pole of second diode is via first current limliting
Resistance is connected to the positive test side, and the positive pole of first diode is connected to the negative pole of second diode, described
The negative pole of one diode is via test side is born described in the capacitance connection, the negative pole of first diode is also via described second
Current-limiting resistance is connected to the negative pole of the 3rd diode, and the positive pole of the 3rd diode is being connected to the 4th diode just
Pole, the negative pole of the 4th diode connects the negative test side, and the transmitting collection of the photosensitive semiconductor pipe connects the processing
Unit and it is grounded via the pull down resistor, the colelctor electrode of photosensitive semiconductor pipe connection internal electric source.
7. a kind of air-conditioning actuator voltage source detection method of the detection circuit based on described in claim 1, it is characterised in that bag
Include：
According to the type in actuator voltage source and state output voltage detection signal；
According to the voltage detection signal, the type and power supply state in the actuator voltage source are determined, and it is determined that institute
The frequency of the alternating current is determined when stating actuator voltage source for alternating current.
8. air-conditioning actuator voltage source detection method according to claim 7, it is characterised in that the voltage detection signal
Including the first level signal and/or second electrical level signal；
Determining the type in the actuator voltage source includes：When detecting lasting output second electrical level signal, driver is determined
The type of voltage source is direct current；When detecting the first level signal of interval output, second electrical level signal, driver electricity is determined
The type of potential source is alternating current.
9. air-conditioning actuator voltage source detection method according to claim 8, it is characterised in that determine the driver electricity
The power supply state of potential source includes：When detecting the first level signal of lasting output, the power down of actuator voltage source is determined.
10. air-conditioning actuator voltage source detection method according to claim 8, it is characterised in that determine the alternating current
Frequency include：Using the switching frequency of first level signal and the second electrical level signal as alternating current frequency.
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| CN201710250895.8A CN107167745B (en) | 2017-04-14 | 2017-04-14 | A kind of air-conditioning actuator voltage power sense circuit and method |
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| CN201710250895.8A CN107167745B (en) | 2017-04-14 | 2017-04-14 | A kind of air-conditioning actuator voltage power sense circuit and method |
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| CN107167745B CN107167745B (en) | 2019-08-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111090055A (en) * | 2019-12-27 | 2020-05-01 | 珠海格力电器股份有限公司 | Abnormal power failure detection circuit and method |
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| CN103701303A (en) * | 2013-12-29 | 2014-04-02 | 哈尔滨工业大学 | Switching power supply with testability function and testing method thereof |
| CN103728572A (en) * | 2014-01-10 | 2014-04-16 | 矽力杰半导体技术(杭州)有限公司 | Load test method and test circuit and switching power supply utilizing same |
| CN105137153A (en) * | 2015-08-21 | 2015-12-09 | 广东易事特电源股份有限公司 | Current detection circuit of switch power supply and switch power supply |
| CN105259516A (en) * | 2015-11-11 | 2016-01-20 | 漳州科华技术有限责任公司 | A back-up type UPS input switch abnormity detection apparatus |
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2017
- 2017-04-14 CN CN201710250895.8A patent/CN107167745B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701303A (en) * | 2013-12-29 | 2014-04-02 | 哈尔滨工业大学 | Switching power supply with testability function and testing method thereof |
| CN103728572A (en) * | 2014-01-10 | 2014-04-16 | 矽力杰半导体技术(杭州)有限公司 | Load test method and test circuit and switching power supply utilizing same |
| CN105137153A (en) * | 2015-08-21 | 2015-12-09 | 广东易事特电源股份有限公司 | Current detection circuit of switch power supply and switch power supply |
| CN105259516A (en) * | 2015-11-11 | 2016-01-20 | 漳州科华技术有限责任公司 | A back-up type UPS input switch abnormity detection apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111090055A (en) * | 2019-12-27 | 2020-05-01 | 珠海格力电器股份有限公司 | Abnormal power failure detection circuit and method |
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| CN107167745B (en) | 2019-08-13 |
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