This 6V to 12V dc-dc boost converter can drive a load in 12V about 3A current.The 555 timer IC is operated in astable mode, generates about 29Khz frequency of about 54% duty cycle drives the input of TIP41C transistor.1000uF capacitor smoothens the output voltage of the dc-dc converter.LED and 1.5Kohm resistor serves as indicator and load for output stability when no load is connected.You can add a 12V zener diode (1N5242B)across output to ground for further output stability.
The 39ohm resistor at the base of transistor is rated 1W, the rest 1/4W or more.Inductor can be made out of #22AWG wire wound around on an old transistor radio ferrite core.Number of turns more than 30T, but not critical.Change the values and experiment more using this circuit.
4 comments:
Hi
I seem to have a hard time getting any simulation to work properly in ltspice can I seen you the model maybe you can tell me what I'm doing wrong.
Thanks for sharing
I have to design 10V dc to 14 V dc boost converter. please mention that values of compornent for that
what do I have to include on this cct diagram if am to work on the 6volts to 18volts output?
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