CN107196495A - Power supply circuit, method of supplying power to and its gas water-heating furnace of flame ion detection - Google Patents
Power supply circuit, method of supplying power to and its gas water-heating furnace of flame ion detection Download PDFInfo
- Publication number
- CN107196495A CN107196495A CN201710436450.9A CN201710436450A CN107196495A CN 107196495 A CN107196495 A CN 107196495A CN 201710436450 A CN201710436450 A CN 201710436450A CN 107196495 A CN107196495 A CN 107196495A
- Authority
- CN
- China
- Prior art keywords
- circuit
- power supply
- transformer
- switching tube
- oscillating circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/36—Means for starting or stopping converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
- H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
- H02M5/10—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Combustion (AREA)
Abstract
The invention discloses a kind of power supply circuit of flame ion detection, including transformer, start-up circuit and oscillating circuit；Start-up circuit input connects enabling signal, start-up circuit output end output drive signal is to oscillating circuit, output end of oscillating circuit connects the primary side of transformer, for producing oscillator signal in the primary side of transformer and being that the inspection ignition circuit for being connected to transformer secondary is powered by primary side energy transmission to secondary.The invention also discloses the method for supplying power to of the power supply circuit of flame ion detection, include detecting whether to need to examine fire；Export enabling signal；Start-up circuit output drive signal is to oscillating circuit, and oscillating circuit, which vibrates, causes primary transformer coil to pass through AC energy；Secondary transformer induces power supply signal and powered for inspection ignition circuit, starts inspection fire.Present invention also offers the power supply circuit detected including the flame ion and the gas water-heating furnace of method of supplying power to.Circuit of the present invention is simple, power supply effect is good, examine ignition circuit reliable operation and long lifespan.
Description
Technical field
Present invention relates particularly to power supply circuit, method of supplying power to and its gas water-heating furnace of a kind of flame ion detection.
Background technology
With the development and the improvement of people's living standards of national economy technology, hot water supply progressively becomes people
Primary demand.And gas water-heating furnace supplies the features such as fast, reliability is high with its hot water, the head in people family is had become
Select hot water supply equipment.
At present, the widely used flame ion current detecting mode of gas water-heating furnace is filled as the safeguard protection of gas water-heating furnace
Put.The interference of the mode of flame ion current detecting not light, thermal and magnetic etc., with it is simple in construction, be swift in response, reliability it is high
The characteristics of.
The flame ion current detection circuit and its power supply circuit of existing gas water-heating furnace are as shown in Figure 1：Flame ion
It is to isolate 220V electric mains transformation using an AC power frequency transformer to produce an ac high-voltage to detect power supply circuit, single
Solely detected for flame ion.But, there is following defect in current this power supply circuit：One is that this power supply circuit is electric by power network
The influence of fluctuating change is pressed, output voltage is unstable, often leads to flame ion and can't detect or the problems such as size test is inaccurate,
And then fuel gas buring flame situation can not be accurately obtained, such a situation is once appearance, it is impossible to be the Combustion System of gas water-heating furnace
Reliable feedback of the information is provided, the normal of influence wall-hung boiler is used；Once two be wall-hung boiler upper electricity, this power supply circuit and is connected therewith
The inspection ignition circuit connect is worked always, and power supply circuit can not be flexibly controlled according to the working condition of wall-hung boiler and ignition circuit is examined
Whether work, and examine working always for ignition circuit and its power supply circuit, can greatly accelerate the old of power supply circuit and inspection ignition circuit
Change.
The content of the invention
An object of the present invention is to provide that a kind of circuit is simple and reliable, power supply effect is good, enable to flame ion
Detect the power supply circuit of circuit reliable operation, long lifespan and the accurate flame ion detection of detection.
The second object of the present invention is to provide a kind of method of supplying power to of the power supply circuit of the flame ion detection.
The third object of the present invention is to provide a kind of power supply circuit for including the flame ion detection and its power supply
The gas water-heating furnace of method.
The power supply circuit for this flame ion detection that the present invention is provided, including transformer, the secondary output end of transformer
Connection inspection ignition circuit, in addition to start-up circuit and oscillating circuit；The input connection enabling signal of start-up circuit, start-up circuit
Output end output drive signal is transmitted to oscillating circuit, and the output end of oscillating circuit connects the primary side of transformer, in transformation
The primary side of device produces oscillator signal, so as to be powered by the energy transmission of transformer primary side to secondary and for inspection ignition circuit.
Described start-up circuit includes start-up circuit switching tube and current-limiting resistance；The control end of start-up circuit switching tube passes through
Current-limiting resistance connects enabling signal, one end connection positive source of the movable end of start-up circuit switching tube, start-up circuit switching tube
Movable end the other end for start-up circuit output end and connect oscillating circuit.
The enabling signal all the way that described enabling signal exports for the controller of gas water-heating furnace itself.
Described start-up circuit switching tube is triode or metal-oxide-semiconductor.
Described oscillating circuit includes divider resistance, filter capacitor and oscillating circuit switching tube；Oscillating circuit switching tube
Control end connects the output end of start-up circuit by divider resistance, while being grounded by filter capacitor；Oscillating circuit switching tube
One end ground connection of movable end, the other end connects positive source by primary transformer coil；Described enabling signal is believed for PWM
Number.
Described oscillating circuit switching tube is triode or metal-oxide-semiconductor.
Described oscillating circuit includes divider resistance, filter capacitor and oscillating circuit switching tube, and oscillating circuit switching tube is
Triode, and transformer primary side has two groups of coils；The base stage of oscillating circuit switching tube by first group of coil of transformer primary side and
Pull-up circuit connects the output end of start-up circuit, is grounded simultaneously also by filter capacitor；The emitter stage of oscillating circuit switching tube connects
Ground, colelctor electrode connects positive source, and second group of coil connection power supply of transformer primary side by second group of coil of transformer primary side
One end that the first group of coil in one end of positive pole and transformer primary side is connected the base stage of oscillating circuit switching tube is Same Name of Ends；It is described to open
Dynamic signal is level signal stable all the way.
Present invention also offers the method for supplying power to of the power supply circuit of flame ion detection, comprise the following steps：
S1. gas water-heating furnace detects whether to need to carry out inspection fire using inspection ignition circuit；
S2. the result obtained according to step S1, the controller output of gas water-heating furnace enables signals to start-up circuit all the way,
To start the power supply circuit work of inspection ignition circuit；
S3. start-up circuit exports drive signal all the way after starting and transmitted to oscillating circuit, and oscillating circuit starts to vibrate and made
It must connect on the primary transformer coil of oscillating circuit by AC energy of equal value；
S4. secondary transformer induces stable power supply signal, and is powered for inspection ignition circuit so that inspection ignition circuit work
Make and carry out inspection fire.
Present invention also offers a kind of gas water-heating furnace, the gas water-heating furnace includes the power supply that above-mentioned flame ion is detected
Circuit and its method of supplying power to.
The power supply circuit and its method of supplying power to for this flame ion detection that the present invention is provided, by using gas water-heating furnace
Control signal driving start-up circuit and oscillating circuit work so that for inspection ignition circuit provides all the way stablize power supply,
Therefore the power supply circuit and its method of supplying power to and its gas water-heating furnace for the flame ion detection that the present invention is provided, can not only be fire
Flame ion detection provides stable power supply, realizes the accurate detection of fuel gas buring flame ion size and provided for Combustion System can
The feedback of the information leaned on, additionally it is possible to according to the working condition of the flexible controlling power circuit of the work requirements of wall-hung boiler, in gas and hot water
In the case of stove use time identical, reduce power circuit and examine the use time of ignition circuit, so as to extend power circuit
And the service life of inspection ignition circuit；Finally, the present invention provide flame ion detection power supply circuit and its method of supplying power to and its
Gas water-heating furnace, circuit is simple and practical, and reliability is high.
Brief description of the drawings
Fig. 1 is the flame ion current detection circuit and its power supply circuit of existing gas water-heating furnace.
The functional block diagram for the power supply circuit that Fig. 2 detects for the flame ion of the present invention.
The circuit theory diagrams of the embodiment one for the power supply circuit that Fig. 3 detects for the flame ion of the present invention.
The circuit theory diagrams of the embodiment two for the power supply circuit that Fig. 4 detects for the flame ion of the present invention.
Fig. 5 is the method flow diagram of the method for supplying power to of the power supply circuit of the flame ion detection of the present invention.
Embodiment
It is illustrated in figure 2 the functional block diagram of the power supply circuit of the flame ion detection of the present invention：The present invention provide this
The power supply circuit of flame ion detection, including transformer, the secondary output end connection inspection ignition circuit of transformer are planted, in addition to is started
Circuit and oscillating circuit；The input connection enabling signal of start-up circuit, the output end output drive signal transmission of start-up circuit
To oscillating circuit, the output end of oscillating circuit connects the primary side of transformer, and oscillator signal is produced for the primary side in transformer, from
And powered by the energy transmission of transformer primary side to secondary and for inspection ignition circuit；Start-up circuit includes start-up circuit switching tube and limit
Leakage resistance；The control end of start-up circuit switching tube connects enabling signal, the movable end of start-up circuit switching tube by current-limiting resistance
One end connection positive source, the other end of the movable end of start-up circuit switching tube for start-up circuit output end and connect vibration
Circuit.The enabling signal all the way that enabling signal exports for the controller of gas water-heating furnace itself.And start-up circuit switching tube can be with
Using the function identical switching tube such as triode or metal-oxide-semiconductor.
It is illustrated in figure 3 the circuit theory diagrams of the embodiment one of the power supply circuit of the flame ion detection of the present invention：Start
Circuit includes start-up circuit switching tube Q1 and current-limiting resistance R2, and oscillating circuit includes divider resistance R3, filter capacitor C2 and vibration
Contactor pipe Q2；The control end (base stage) of start-up circuit switching tube connects enabling signal by current-limiting resistance, now starts letter
Number for pwm signal all the way, one end (emitter stage) connection positive source of the movable end of start-up circuit switching tube, start-up circuit switch
The other end (colelctor electrode) of the movable end of pipe is the output end of start-up circuit, and it connects oscillating circuit switching tube by divider resistance
Control end, while being grounded by filter capacitor；One end (emitter stage) ground connection of the movable end of oscillating circuit switching tube, the other end
(colelctor electrode) connects positive source by primary transformer coil；Enabling signal is input to the control end of start-up circuit switching tube,
So that start-up circuit switching tube is constantly turned on and off, so that control end forming frequency and startup in oscillating circuit switching tube
Signal identical pwm control signal simultaneously causes oscillating circuit switching tube constantly to turn on and off, so that the original of transformer
Equivalent AC energy is produced on the circle of sideline, finally makes the energy transmission of primary side in transformer coil to the inspection ignition circuit of secondary.
It is illustrated in figure 4 the circuit theory diagrams of the embodiment two of the power supply circuit of the flame ion detection of the present invention；Start
Circuit includes start-up circuit switching tube Q1 and current-limiting resistance R2, and oscillating circuit includes divider resistance R3, filter capacitor C2 and vibration
Contactor pipe Q2, oscillating circuit switching tube is triode, and transformer primary side has two groups of coils；The control of start-up circuit switching tube
End (base stage) processed connects enabling signal by current-limiting resistance, and now enabling signal is low level signal stable all the way, starts electricity
One end (emitter stage) connection positive source of the movable end of way switch pipe, the other end (collection of the movable end of start-up circuit switching tube
Electrode) be start-up circuit output end, it, which passes through first group of coil of divider resistance and transformer primary side and connects oscillating circuit, switchs
The control end (base stage) of pipe, while being grounded by filter capacitor, the grounded emitter of oscillating circuit switching tube, colelctor electrode is by becoming
Second group of coil connection positive source of depressor primary side, and the one end and transformation of second group of coil connection positive source of transformer primary side
One end of the base stage of first group of coil of device primary side connection oscillating circuit switching tube is Same Name of Ends (1,3 of transformer T2 i.e. in figure
Two ends are Same Name of Ends)；When inputting the low level signal of A ports input stabilization, triode Q1 conductings, triode Q2 base stages are equivalent
Divider resistance R3 is met to+5V DC voltages, triode Q2 conductings produce base current Ib, transformer T2 1,4 between have electric current Ic
Flow through, 3, the 2 end induced potentials in transformer T2 make I just, to produce the base-emitter that electric current flows through triode Q2cIncrease
Greatly, feedback is formed, until triode Q2 saturations, IcNo longer increase, be fed back to 0, the base-emitter for flowing through triode Q2 recovers
To base current Ib, IcReduce, 3, the 2 end induced potentials in transformer T2 are negative, until triode Q2 ends, in transformer T2
3,2 end induced potentials be 0, triode Q2 is turned on again, is vibrated with this.And if in input A ports input high level, three poles
Pipe Q1, Q2 are in cut-off state, and power supply circuit does not work, and T2 level of transformer is produced without alternating voltage.
The method flow diagram of the method for supplying power to of the power supply circuit detected as described in Figure 5 for the flame ion of the present invention：This hair
The method of supplying power to of the bright power supply circuit for additionally providing the flame ion detection, comprises the following steps：
S1. gas water-heating furnace detects whether to need to carry out inspection fire using inspection ignition circuit；
S2. the result obtained according to step S1, the controller output of gas water-heating furnace enables signals to start-up circuit all the way,
To start the power supply circuit work of inspection ignition circuit；
S3. start-up circuit exports drive signal all the way after starting and transmitted to oscillating circuit, and oscillating circuit starts to vibrate and made
It must connect on the primary transformer coil of oscillating circuit by AC energy of equal value；
S4. secondary transformer induces stable power supply signal, and is powered for inspection ignition circuit so that inspection ignition circuit work
Make and carry out inspection fire.
The power supply circuit and its method of supplying power to for this flame ion detection that the present invention is provided, are applicable not only to gas and hot water
Stove, is also applied for other similar devices for needing to carry out combustion gas inspection fire, such as gas heater, gas furnace, fuel wall hanging
The equipment such as stove, combustion gas baker.
Claims (9)
1. a kind of power supply circuit of flame ion detection, including transformer, the secondary output end connection inspection ignition circuit of transformer, its
It is characterised by also including start-up circuit and oscillating circuit；The input connection enabling signal of start-up circuit, the output of start-up circuit
End output drive signal is transmitted to oscillating circuit, and the output end of oscillating circuit connects the primary side of transformer, in transformer
Primary side produces oscillator signal, so as to be powered by the energy transmission of transformer primary side to secondary and for inspection ignition circuit.
2. the power supply circuit of flame ion detection according to claim 1, it is characterised in that described start-up circuit includes
Start-up circuit switching tube and current-limiting resistance；The control end of start-up circuit switching tube connects enabling signal by current-limiting resistance, starts
One end connection positive source of the movable end of contactor pipe, the other end of the movable end of start-up circuit switching tube is start-up circuit
Output end and connect oscillating circuit.
3. the power supply circuit of flame ion detection according to claim 2, it is characterised in that described start-up circuit switch
Manage as triode or metal-oxide-semiconductor.
4. the power supply circuit of flame ion detection according to claim 1, it is characterised in that described enabling signal is combustion
The enabling signal all the way of the controller output of gas water heater itself.
5. the power supply circuit of the flame ion detection according to one of Claims 1 to 4, it is characterised in that described vibration electricity
Road includes divider resistance, filter capacitor and oscillating circuit switching tube；The control end of oscillating circuit switching tube is connected by divider resistance
The output end of start-up circuit is connect, while being grounded by filter capacitor；One end ground connection of the movable end of oscillating circuit switching tube is another
End connects positive source by primary transformer coil；Described enabling signal is pwm signal.
6. the power supply circuit of flame ion detection according to claim 5, it is characterised in that described oscillating circuit switch
Manage as triode or metal-oxide-semiconductor.
7. the power supply circuit of the flame ion detection according to one of Claims 1 to 4, it is characterised in that described vibration electricity
Road includes divider resistance, filter capacitor and oscillating circuit switching tube, and oscillating circuit switching tube is triode, and transformer primary side has
Two groups of coils；The base stage of oscillating circuit switching tube connects start-up circuit by first group of coil of transformer primary side and pull-up circuit
Output end, is grounded simultaneously also by filter capacitor；The grounded emitter of oscillating circuit switching tube, colelctor electrode passes through transformer primary side
Second group of coil connects positive source, and one end and the transformer primary side the of second group of coil connection positive source of transformer primary side
One end of the base stage of one group of coil connection oscillating circuit switching tube is Same Name of Ends；The enabling signal is level letter stable all the way
Number.
8. the method for supplying power to of the power supply circuit of the flame ion detection described in a kind of one of claim 1~7, including following step
Suddenly：
S1. gas water-heating furnace detects whether to need to carry out inspection fire using inspection ignition circuit；
S2. the result obtained according to step S1, the controller output of gas water-heating furnace enables signals to start-up circuit all the way, to open
The power supply circuit work of dynamic inspection ignition circuit；
S3. start-up circuit exports drive signal all the way after starting and transmitted to oscillating circuit, and oscillating circuit starts to vibrate and to connect
Connect on the primary transformer coil of oscillating circuit by AC energy of equal value；
S4. secondary transformer induces stable power supply signal, and is powered for inspection ignition circuit so that the work of inspection ignition circuit is simultaneously
Carry out inspection fire.
9. a kind of gas water-heating furnace, it is characterised in that include the power supply electricity of the flame ion detection described in one of claim 1~7
Method of supplying power to described in road and claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710436450.9A CN107196495A (en) | 2017-06-12 | 2017-06-12 | Power supply circuit, method of supplying power to and its gas water-heating furnace of flame ion detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710436450.9A CN107196495A (en) | 2017-06-12 | 2017-06-12 | Power supply circuit, method of supplying power to and its gas water-heating furnace of flame ion detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107196495A true CN107196495A (en) | 2017-09-22 |
Family
ID=59877486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710436450.9A Pending CN107196495A (en) | 2017-06-12 | 2017-06-12 | Power supply circuit, method of supplying power to and its gas water-heating furnace of flame ion detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107196495A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111917398A (en) * | 2020-07-03 | 2020-11-10 | 华帝股份有限公司 | Flame ion signal detection circuit and control method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2318784Y (en) * | 1996-05-20 | 1999-05-12 | 卢倩 | Light low-voltage electric heater using with interter and power regulator |
| JP2004311158A (en) * | 2003-04-04 | 2004-11-04 | Silver Kk | Negative ion generator |
| CN101916967A (en) * | 2010-07-17 | 2010-12-15 | 中山市华美骏达电器有限公司 | Single-needle electronic pulse ignition induction circuit |
| CN201858666U (en) * | 2010-07-17 | 2011-06-08 | 中山市华美骏达电器有限公司 | Single-needle electronic pulse ignition sensing circuit |
| CN104456619A (en) * | 2014-11-10 | 2015-03-25 | 深圳市兴吉胜电子有限公司 | Lighter |
| CN207069896U (en) * | 2017-06-12 | 2018-03-02 | 万家乐热能科技有限公司 | The power supply circuit and its gas water-heating furnace of flame ion detection |
-
2017
- 2017-06-12 CN CN201710436450.9A patent/CN107196495A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2318784Y (en) * | 1996-05-20 | 1999-05-12 | 卢倩 | Light low-voltage electric heater using with interter and power regulator |
| JP2004311158A (en) * | 2003-04-04 | 2004-11-04 | Silver Kk | Negative ion generator |
| CN101916967A (en) * | 2010-07-17 | 2010-12-15 | 中山市华美骏达电器有限公司 | Single-needle electronic pulse ignition induction circuit |
| CN201858666U (en) * | 2010-07-17 | 2011-06-08 | 中山市华美骏达电器有限公司 | Single-needle electronic pulse ignition sensing circuit |
| CN104456619A (en) * | 2014-11-10 | 2015-03-25 | 深圳市兴吉胜电子有限公司 | Lighter |
| CN207069896U (en) * | 2017-06-12 | 2018-03-02 | 万家乐热能科技有限公司 | The power supply circuit and its gas water-heating furnace of flame ion detection |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111917398A (en) * | 2020-07-03 | 2020-11-10 | 华帝股份有限公司 | Flame ion signal detection circuit and control method thereof |
| CN111917398B (en) * | 2020-07-03 | 2024-04-05 | 华帝股份有限公司 | Flame ion signal detection circuit and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102057136B1 (en) | Electromagnetic heating control circuit and electromagnetic heating device | |
| CN106414994B (en) | Control system for corona ignition power supply | |
| CN104020377A (en) | LED driving device, controller thereof and dimming mode detection method | |
| CN102217427A (en) | Electronic ballast having a partially self-oscillating inverter circuit | |
| CN104168696B (en) | Compatible type LED power circuit | |
| CN105553298B (en) | A kind of hollow cathode supply convertor and its control system | |
| CN110425568A (en) | A kind of igniting inspection ignition circuit and gas combustion apparatus | |
| CN103698052A (en) | Temperature sensor abnormality judgment method and imaging device employing same | |
| CN109818505A (en) | Single needle igniting inspection ignition circuit and the burnt gas wall hanging furnace using the circuit | |
| CN104010399A (en) | Electromagnetic heating apparatus and control method thereof | |
| CN106332338A (en) | Electromagnetic heating system, and driving device and driving method of electromagnetic heating system | |
| TWI545865B (en) | Power line communication control system adapted for single-wire and method thereof | |
| CN106505513A (en) | A kind of LED drive power and its outfan short-circuit protection circuit | |
| CN110594783B (en) | Control strategy for hot-face igniter | |
| CN205505078U (en) | Novel ignition of gas hanging stove | |
| CN107196495A (en) | Power supply circuit, method of supplying power to and its gas water-heating furnace of flame ion detection | |
| CN207069896U (en) | The power supply circuit and its gas water-heating furnace of flame ion detection | |
| CN206594279U (en) | A kind of Switching Power Supply life-span tester | |
| CN102914734B (en) | End life detection circuit of gas discharge lamp and ballast for ending life detection circuit | |
| CN205584009U (en) | Starting circuit and switching power supply | |
| JP2000503156A (en) | Diagnostic input circuit for general-purpose sequence controller | |
| CN106523240B (en) | TCI ignitor circuit with speed limiting function | |
| CN104405557B (en) | Ignition monitoring circuit structure of general gasoline engine igniter | |
| CN108036517A (en) | Gas instantaneous water heater wind turbine invariable power automatic control system and method | |
| CN208832751U (en) | Gas instantaneous water heater blower invariable power automatic control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |