Great God teaches you DIY a 12V boost ignition device
This circuit uses a boost circuit made by UC3843. The voltage input is 12V and the boost voltage can be adjusted from 22V to 190V. This circuit is suitable for the ignition of rockets or fireworks. Making this circuit is at your own risk. The UC3843 is a high performance fixed frequency current mode controller designed for off-line and DC to DC converter applications, providing designers with a cost-effective solution with minimal external components.
Making a good board
Circuit schematic
PCB diagram
The UC3843 IC features a trimmable oscillator, accurate duty cycle control, temperature compensated reference, high gain error amplifier, current sample comparator, and high current totem pole output. It is ideal for driving power MOSFETs. Designed for low voltage applications, the low voltage lockout thresholds are: 8.5 volts (pass) and 7.6 volts (off).
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