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AC voltage-doubling ignition circuit

A technology of ignition circuit and AC power supply, which is applied in the direction of capacitive energy storage device, etc., which can solve the problems of inconvenient use and injury

Inactive Publication Date: 2012-06-27
NORTHWEST A & F UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, Chinese food stoves and large fire stoves generally use original ignition rods, which are inconvenient to use and can also hurt people. Once deflagration occurs, the loss will be serious.

Method used

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Examples

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Embodiment Construction

[0012] An embodiment will be described below in conjunction with the accompanying drawings. Depend on figure 1 It can be seen that the high-voltage package primary coil (2), ignition capacitor (3) and thyristor (4) of the AC voltage doubling ignition circuit are connected in series to the AC power supply AC. When a unidirectional thyristor is used, it should be connected to a diode ( 5) Anti-parallel connection provides a path for reverse charging the capacitor and forms a double voltage path for the thyristor. When bidirectional thyristor is used, diode (5) should be omitted. The trigger pole of the thyristor is connected to the voltage dividing points of the upper voltage dividing resistor (6) and the lower voltage dividing resistor (8), and the two voltage dividing resistors are also connected to the AC power supply. The switch (7) linked with the fuel valve is connected in series with the voltage dividing resistor to control the trigger pole, and the load of the switch ...

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PUM

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Abstract

The invention relates to an AC dual voltage ignition circuit for igniting an oil burner or a gas burner. A high voltage package primary coil, an ignition capacitor and a thyristor are connected in series and are then connected with an AC power supply. The thyristor is reversely connected in parallel with a diode; and the triggering electrodes of the thyristor are connected with the voltage dividing points of two resistors. A divider resistor is also connected with the AC power supply. A voltage dividing value is changed, and the thyristor can be triggered under the dual voltage of the AC power supply. The dual voltage triggering ignition has greater spark energy, and a high and stable frequency, thereby ensuring the stable and reliable ignition of the burner.

Description

Technical field: [0001] The invention is an electric spark generating circuit. Suitable for ignition of oil and gas burners. Background technique [0002] At present, the ignition modes of known oil and gas burners include ignition rod, piezoelectric type and electronic pulse type. Due to the difficulty in ignition of high-power burners and biogas burners, the safety requirements are very high. Therefore, Chinese food stoves and large fire stoves generally use original ignition rods, which are inconvenient to use and can also hurt people. Once deflagration occurs, the loss will be serious. Battery powered electronic pulse igniters are commonly used in domestic stoves. The spark energy of the igniter powered by mains power is relatively large and has a development prospect. However, the capacitor and thyristor of ordinary electronic pulse igniter work in parallel, and the spark frequency varies with the power supply voltage, and the thyristor works within one time of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02P3/09
Inventor 富良
Owner NORTHWEST A & F UNIV
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