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Flame ion signal compensation circuit and control method

A flame ion and signal compensation technology, applied in the direction of combustion method, electric pulse generator circuit, combustion ignition, etc., can solve problems affecting user experience, weakening of flame ion signal, accidental flameout protection, etc., to improve customer experience, Prevent false flameout and improve reliability

Active Publication Date: 2020-12-04
VATTI CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the igniters of most gas equipment are powered by dry batteries, relying on high-voltage pulses generated by boosting the battery voltage to hundreds of volts through high-frequency transformers and oscillating circuits to excite the ionized flame, and detecting the ionized flame ion signal to judge the state of the flame , when the battery power becomes low, the flame ion signal will become weaker, which will affect the reliability of flame judgment, easily trigger accidental flameout protection, and affect user experience

Method used

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  • Flame ion signal compensation circuit and control method

Examples

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Embodiment 1

[0028] Embodiment 1 provides a flame ion signal compensation circuit, such as figure 1 As shown, it is used to compensate the battery power of the pulse igniter, which includes a voltage detection module 1, a boost module 2, a compensation module 3, an oscillation transformer module 4, a flame detection module 5 and a control unit, the control unit and The voltage detection module 1, the compensation module 3, the oscillation transformer module 4 and the flame detection module 5 are all electrically connected, the compensation module 3 is electrically connected to the boost module 2, and the oscillation The transformer module 4 is electrically connected to the flame detection module 5;

[0029] In this way, using the above circuit, the control unit controls the voltage detection module 1 to obtain the battery voltage signal Vbat, and then generates a compensation control signal according to the battery voltage signal Vbat to control the conduction of the compensation module 3,...

Embodiment 2

[0038] A control method of a flame ion signal compensation circuit, the method is implemented by operating the flame ion signal compensation circuit, such as figure 2 As shown, the control method shown includes the following steps:

[0039] S1, the voltage detection module detects the battery voltage signal Vbat;

[0040] S2, judging whether the battery voltage signal Vbat is greater than a preset threshold Vset, if yes, repeating S2, if not, entering step S3;

[0041] S3, start the control unit, control the boost module 2 to increase the voltage to obtain a charging voltage Vcc, and use the charging voltage Vcc to charge the battery within the set charging period T;

[0042] S4, when the charging cycle T starts, the charging voltage Vcc generates a high voltage pulse Vp through the oscillation transformer module 4 to compensate the flame ion signal.

[0043] This embodiment monitors the power of the battery in real time. When it is detected that the battery voltage drops t...

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Abstract

The invention discloses a flame ion signal compensation circuit and a control method. The flame ion signal compensation circuit comprises a voltage detection module, a boosting module, a compensationmodule, an oscillation transformation module, a flame detection module and a control unit, wherein the control unit is electrically connected with the voltage detection module, the compensation module, the oscillation transformation module and the flame detection module; the control unit controls the voltage detection module to acquire a battery voltage signal, and then generates a compensation control signal to control the compensation module to be conducted, so that the boosting module boosts a battery, and then controls the oscillation transformation module to generate a high-voltage pulse,so that the flame detection module detects a flame ion signal generated by a flame under the high-voltage pulse. According to the flame ion signal compensation circuit and the control method disclosed by the technical scheme, the battery capacity is monitored in real time, and when the battery voltage is reduced to a preset threshold value, the flame ion signal compensation circuit is started tocharge the battery, the battery voltage is increased, so that the flame excitation voltage is enhanced, and the compensation of a flame induction signal is realized.

Description

technical field [0001] The invention belongs to the technical field of flame detection circuits, in particular to a flame ion signal compensation circuit and a control method. Background technique [0002] With the development of my country's economy and technology, people's living standards are gradually improving, and hot water supply has become a basic need for people's lives. Various gas-fired water heaters are widely chosen by users because of their fast hot water supply. [0003] At present, the igniters of most gas equipment are powered by dry batteries, relying on high-voltage pulses generated by boosting the battery voltage to hundreds of volts through high-frequency transformers and oscillating circuits to excite the ionized flame, and detecting the ionized flame ion signal to judge the state of the flame , when the battery power becomes low, the flame ion signal will weaken accordingly, affecting the reliability of flame judgment, and it is easy to trigger acciden...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23Q3/00H02M9/02H03K3/57
CPCF23Q3/00H02M11/00H03K3/57
Inventor 罗钊明林枝堂卢仲宇潘叶江
Owner VATTI CORP LTD
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