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Digital frequency conversion discharging control circuit and method for achieving frequency conversion

A discharge control and digital frequency conversion technology, which is applied in the direction of program control, computer control, general control system, etc., can solve the problems of affecting the life of the ignition device, the high heat generation of components, and the easy burning of components, etc., so as to improve the discharge continuity and Reliability, strong anti-interference ability, simple and reliable adjustment

Active Publication Date: 2014-03-26
天津航空机电有限公司
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AI Technical Summary

Problems solved by technology

The ignition device converts low-voltage direct current into high-voltage pulse electricity (above kilovolts). Working at high frequency for a long time, the components in the ignition device will generate a lot of heat, which is easy to burn the components and affect the life of the ignition device.

Method used

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  • Digital frequency conversion discharging control circuit and method for achieving frequency conversion

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Embodiment Construction

[0011] The technical solutions created by the present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0012] Such as figure 1 As shown, the inverter is connected in series between any two pins of the ninth pin, the tenth pin, the eleventh pin and the twelfth pin of the MC14536 chip; the thirteenth tube of the MC14536 chip The pin output discharge signal is connected to one input terminal of the NOR gate, the fourteenth pin of the CD40103B chip is connected to the other input terminal of the NOR gate; the output terminal of the NOR gate is connected to the first pin of the CD40103B chip; the CD40103B chip’s The frequency conversion signal output by the fourteenth pin is divided into two channels, one is connected to the input terminal of the inverter, and the other is connected to the gate of the MOS transistor Q1; the third pin of the MC14536 chip is connected in series with a second resistor R2 and then connected t...

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Abstract

The invention provides a digital frequency conversion discharging control circuit and a method for achieving frequency conversion. According to the digital frequency conversion discharging control circuit and the method for achieving the frequency conversion, digital chips such as a 8-bit preset synchronous decreasing counter CD40103 and an MC14536 programmable timer are combined, the high level and low level of J0, J1, J2, J3, J4, J5, J6 and J7 for the configuration of the CD40103B counter are adjusted so that a preset value of the counter can be changed, as a result, the number of times of discharging can be counted, a fourteenth pin of the CD40103B counter outputs a frequency conversion signal when the number of times of discharging reaches the preset value, the output frequency of a discharge frequency generator MC14536 is changed, and then the purpose of frequency conversion is achieved. By the adoption of the digital frequency conversion discharging control circuit and the method for achieving the frequency conversion, the frequency conversion time and the discharge frequency can be adjusted accurately, the antijamming capability is quite high due to the adoption of digital signals, adjustment is simple and reliable, and the digital frequency conversion discharging control circuit and the method for achieving the frequency conversion play a role in improving the discharge continuity and reliability of a pulse device.

Description

technical field [0001] The invention relates to a discharge control circuit of a pulse device, in particular to a digital frequency conversion discharge control circuit and a method for realizing frequency conversion. Background technique [0002] The ignition device, which is an important part of the engine ignition system, is a pulse generator. The ignition device has gradually developed from the transistor self-excited type to the digital ignition device. The discharge frequency of the ignition device also develops from instability to stability. The ignition device converts low-voltage direct current into high-voltage pulse electricity (above kilovolts). Working at high frequency for a long time, the components in the ignition device will generate a lot of heat, which is easy to burn the components and affect the life of the ignition device. The ignition device generally works continuously for dozens of seconds. When the engine is difficult to start in harsh environment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
Inventor 冯建昌阎东东乔屹
Owner 天津航空机电有限公司
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