Battery operated gas stove lighter diagram. Ignition transformer, ignition. Ignition block. Spark, spark gap. Burner. With my own hands. Do it yourself, do it yourself. Electric ignition options

Today we will consider Chinese gas lighters powered by AA batteries. The price of such devices does not exceed $1 (in some cases, no more than $0.5). Such lighters have a fully electronic filling. Inside you can find a compact board on which several components are located.

The gas lighter circuit consists of two main parts:

1. Voltage transformer;
2. high voltage coil.

These lighters are designed to work with one or two finger-type batteries with a voltage of 1.5 volts. It can work for a long time on one AA battery, with two batteries you should not turn it on for a long time. During operation, an air sample of no more than 0.5 cm is formed at the outlet. The output voltage of the circuit is about 6-7 kV.

The boost converter consists of only three components:

• Transistor;
• limiting resistor;
• step up transformer.

Scheme of an electronic lighter

The circuit is a blocking generator. An increased voltage of about 50 volts is formed on the secondary winding. Often in such circuits, a bipolar transistor of the S8550D series (p-n-p, 25 V, 1.5 A) is used. Then the voltage is rectified. The thyristor PCR606J (600 V, 0.6 A) operates in the key mode, delivers short-term pulses to the primary winding of the high-voltage coil. The coil itself is sectional, the resistance of the secondary winding is about 355-365 ohms. The winding is wound with copper wire, diameter is around 0.05 mm. The primary winding is wound on a ferrite core and consists of 15 turns, wire 0.4 mm.

Possible causes of device malfunction

• The cause of a circuit malfunction may be primarily a faulty thyristor. It can be replaced with a similar one, for example - MCR2208.
• The second reason for a circuit malfunction may be in the transistor. During operation, it can fail for various reasons. It is advisable to replace the transistor with a more powerful one - kt815/817, although low-power ones - KT315 or, even better, KT3102, can be used.
• Rarely, a circuit can fail due to a diode. The fact is that in some circuits of lighters for gas, a conventional rectifier diode is used, but recently in almost all devices you can see a pulse diode of the FR107 series.

The principle of operation of this device is simple - converting direct voltage into high-voltage high-frequency to produce a spark.
But as practice has shown, the main problem in the manufacture of an electric lighter is a high-voltage transformer: firstly, it has very high requirements regarding the quality of the insulation, and secondly, it must also be as small as possible.

These requirements are satisfied by the scheme below: a ready-made transformer - TVS-70P1 is used here. This is a horizontal transformer that was used in portable black-and-white TVs (such as "Youth" and the like). In the diagram, it is indicated as T2 (only a pair of windings is used).

The proposed circuit allows you to remove the dependence of the voltage supplied to the high-voltage coil on the threshold of operation of the dinistor (they are most often used), as is implemented in previously published circuits.
The circuit consists of a self-oscillator on transistors VT1 and VT2, which increases the voltage to 120 ... 160 V using a transformer T1 and a thyristor start circuit VS1 on the elements VT3, C4, R2, R3, R4. The energy accumulated on the capacitor C3 is discharged through the T2 winding and an open thyristor.

As for the T1 transformer: it is made on an annular ferrite magnetic circuit M2000NM1 of size K16x10x4.5 mm. Winding 1 contains 10 turns, 2 - 650 turns with PELSHO-0.12 wire.
For other details: capacitors: C1, SZ type K50-35; C2, C4 type K10-7 or similar small-sized.
Diode VD1 can be replaced with KD102A, B.
S1 - microswitch type PD-9-2.
Any thyristor can be used, with an operating voltage of at least 200 V.
Transformers T1 and T2 are attached to the board with glue.

The device is made on a printed circuit board and can be placed even in an empty pack of cigarettes

The discharge chamber is located between two rigid wires with a diameter of 1...2 mm at a distance of 80...100 mm from the body. The spark between the electrodes passes at a distance of 3 ... 4 mm.
The circuit consumes a current of no more than 180 mA, and the battery life is enough for more than two hours of continuous operation, however, continuous operation of the device for more than one minute is not desirable due to the possible overheating of the VT2 transistor (it does not have a radiator).
When setting up the device, it may be necessary to select elements R1 and C2, as well as change the polarity of turning on winding 2 at transformer T1. It is also desirable to carry out tuning with uninstalled R2: check the voltage on the capacitor C3 with a voltmeter, and then install the resistor R2 and, by monitoring the voltage with an oscilloscope on the anode of the thyristor VS1, make sure that there is a process of discharging the capacitor C3.
The discharge of SZ through the winding of the transformer T2 occurs when the thyristor is opened. A short pulse to open the thyristor is generated by the VT3 transistor when the voltage across the capacitor C3 rises to more than 120V.

The device can also find other applications, for example, as an air ionizer or an electroshock device, since a voltage of more than 10 kV appears between the spark gap electrodes, which is quite enough to form an electric arc. With a small current in the circuit, this voltage is not life-threatening.

A simple, economical, home-made lighter for igniting gas. 12 parts. Power supply 1.2V. The first converter, an asymmetric multivibrator, was assembled on transistors VT1-VT2. Winding 1 of the transformer Tr2-step-up transformer is connected to the VT2 collector circuit. From its secondary winding, high-frequency voltage is supplied to the rectifier diode. The rectified voltage charges capacitor C2, which in turn opens the thyristor VS1, the open thyristor closes the charged capacitor to winding 1, high-voltage transformer Tr1. A high-voltage discharge occurs on winding 2. The capacitor is discharged, the thyristor closes, and the storage capacitor is charged again C2.

Transformer Tr2, taken from a broken phone charger. To pull out the ferrite core, you need to heat it. On the frame, after removing the windings, wind 500 turns of wire, approximately 0.08 mm in diameter. This will be winding 2. Next, isolate the winding with one or two layers of adhesive tape and wind the primary winding in the same direction as the secondary winding. It contains 10 turns of wire with a diameter of about 0.4-0.8 mm. How to check the operation of the converter is shown in the video.

High voltage transformer Tr1, second voltage converter, they are wound on a ferrite rod from a magnetic antenna of a radio receiver of long and medium waves. I cut the ferrite in a shallow circle with a cloth for cutting tiles. Then I just broke it with my hands. "cheeks", and wind the high-voltage winding-2. The first output of this winding, which will come out of the coil, must be NECESSARILY threaded in PVC insulation to prevent it from breaking from bending. Wind 300 turns with a wire with a diameter of 0.06-0.1 mm. Wind this layer with three layers of adhesive tape, making sure that the edges of the adhesive tape go over the cheeks, otherwise there will be a breakdown in this place. So that the coil does not unwind during winding, it must be glued with a drop of glue. Five layers of 300 turns should be laid on the ferrite. thin wire, it can be welded with a lighter. Twist two wires and heat the end of the twist until a round appears. Then gently pull the two wires, and you can but then continue winding. Isolate the high-voltage winding with three layers of adhesive tape, and in the same direction as the secondary, wind the primary. It contains 10 turns of wire 0.6-0.8mm. A layer of adhesive tape and the coil is ready.

Finished coils.

I selected transistors, and found the best option for the operation of the first converter. These are common transistors kt361 and c3205. Instead of kt361, kt3107 is suitable. it is also common, but it will probably fit from the same mcr100-... Resistors R3-R4 are used for the thyristor opening threshold. By selecting them, you can increase the spark at the output. The diodes must be fast switching, see datasheets. Suitable: ps158r; fr155p ;fr107;fr103.

The arc that ignites the gas is about 5-6 mm long. If the arc length is shorter, the gas will not ignite. The arc is not dangerous, tingling sensations, like from a piezo lighter. The battery should last for a long time. , and for an hour the sparks flickered on my table. I checked the battery and it was not discharged.
Here are two videos on how to make a gas stove lighter.

Scheme of a homemade ignition transformer, a source of sparks for the burner and more. (10+)

High-voltage ignition transformer, ignition block, do-it-yourself source of sparks

The most important: The scheme gives excellent spark suitable for igniter burners. It can be used to ignite household gas on the stove, ignite gas and diesel burners, ignite a blowtorch. Be attentive and careful. The device is powered by mains voltage. For its assembly and adjustment, you must have a qualification that allows you to work with mains voltage. The product must be assembled in such a way that users who do not have special qualifications and knowledge will not be exposed to electric shock. To do this, all electrically conductive elements that are under mains voltage or have a galvanic connection with the network must be reliably insulated. An isolation transformer must provide reliable isolation of one winding from another. Using an ignition transformer instead of a regular one with an industrial burner, you void the manufacturer's warranty. In addition, make sure that the burner control is supplying mains voltage to the ignition transformer and not some other signal.

The first time I assembled this circuit, I was pushed by a malfunction of the high-voltage ignition transformer in a diesel burner. It was possible to purchase purchased, but I wanted to experiment. Subsequently, I began to use this circuit everywhere for: igniting a manual gas burner, igniting the flame of an old gas stove (the ignition also burned out), igniting a home-made burner using used oil, obtaining high voltage for experiments, etc. The device turned out to be very successful, simple and reliable .

Schematic diagram, design of the ignition transformer

Unfortunately, errors occur periodically in articles, they are corrected, articles are supplemented, developed, new ones are being prepared.

Almost all gas stoves have gas ignition system: when you press the button, a spark gap is triggered near the burner, a spark breaks through and the gas ignites. Of course, this is very convenient (after all, once it was necessary to carry out this entire procedure with the help of matches), only here there is one drawback - the spark generated by this device is single.

Using electronics, you can slightly modify this system and turn it into a multi-spark system.

Schemes for igniting gas in household gas stoves

Option one

Scheme operated by the author for more than 10 years as electric ignition gas stoveIndesit and mounted in the dimensions of the "regular" device. The high-voltage transformer in this design is used "native", but in its absence, you can try to make it yourself (for a four-burner stove - two transformers). The transformer is wound on a core made of transformer steel plates with a cross section of about 1 cm2 (a set of "closing plates from a Ш-shaped transformer). For winding, a frame is made of pressboard, thick cardboard or textolite (preferably sectional, with cuts in sections) or a suitable plastic frame is taken from the Ш-shaped transformer.The primary winding contains 10 .. 20 turns of PEV-2 0.8 wire, and the secondary winding is wound with PELSHO 0.07 wire and contains several thousand turns - until the frame is filled. Winding is carried out with a roller from one edge of the frame to the other, so that high-voltage the conclusions turned out to be on opposite sides of the frame.The secondary winding is carefully isolated from the primary with several layers of wax paper, lavsan or fluoroplastic film.The whole structure is impregnated with ceresin to improve insulation.The circuit works as follows: with a positive half-wave of the mains voltage (terminal L), the diode VD2 is charged in turn capacitor C1, and with negative p on the wave through the diode VD1, the triac VS1 opens and discharges the capacitor C1 to a high-voltage transformer, which forms ignition spark. The process is repeated at a frequency of 50 Hz and a powerful sheaf of sparks is formed on the ignition electrodes, instantly igniting the gas.

Option two

This electric gas ignition scheme for a household gas stove almost similar to the one shown above, but contains a little more detail - here a thyristor is used instead of a triac.
The circuit works as follows: with a negative half-wave of the mains voltage (terminal L), the capacitor C1 is charged through the diodes VD2 and VD4, and with a positive half-wave, the thyristor VS1 opens through the diode VD1 and discharges the capacitor C1 to a high-voltage transformer that forms an ignition spark. Diode VD3 serves to ensure the flow of current through the control electrode of the thyristor with a positive half-wave. The process is repeated at a frequency of 50 Hz and a powerful sheaf of sparks is formed on the ignition electrodes, instantly igniting the gas.

Option three

The circuit works as follows: with a positive half-wave of the mains voltage (pin L), the capacitor C1 is charged through the diodes VD2 and VD3, and with a negative half-wave through the diode VD1, the thyristor cathode VS1 is connected to the "negative" half-wave, and through the resistor R3, the thyristor control electrode is supplied control current. The thyristor opens and discharges capacitor C1 to a high-voltage transformer, which forms an ignition spark. The process is repeated at a frequency of 50 Hz and a powerful sheaf of sparks is formed on the ignition electrodes, instantly igniting the gas.

Option four

Here, a transistor is used in the thyristor control generation device circuit. Any low-power p-n-p transistor with a gain of more than 100 and a maximum current of at least 100 mA can be used in the circuit, for example, KT209, KT361, KT3107 or an imported analogue.
The circuit works as follows: with a positive half-wave of the mains voltage (terminal L), the storage capacitor C2 is charged through the VD3 diode, and the capacitor C1 is charged through the resistor R2 and the VD2 diode. Zener diode VD1 limits this voltage to 9 - 15 V. With a negative half-wave of mains voltage, transistor VT1 opens with current through resistor R2 and discharges capacitor C1 to the control electrode of the thyristor, which discharges capacitor C2 to a high-voltage transformer that forms an ignition spark. The process is repeated at a frequency of 50 Hz and a a powerful sheaf of sparks, instantly ignition gas.

Option five

The circuit works as follows: with a positive half-wave of the mains voltage (terminal L), the storage capacitor C2 is charged through the VD3 diode, and the capacitor C1 is charged through the resistor R2 and the VD2 diode. Zener diode VD1 limits this voltage to 9 - 15 V. With a negative half-wave of mains voltage, transistor VT1 opens with current through resistor R2 and discharges capacitor C1 to the control electrode of the thyristor, which discharges capacitor C2 to a high-voltage transformer that forms an ignition spark. The process is repeated at a frequency of 50 Hz and a powerful sheaf of sparks is formed on the ignition electrodes, instantly igniting the gas.