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  • goldline commented on vina1991's instructable 220V HOMEMADE PORTABLE POWER INVERTER9 months ago
    220V HOMEMADE PORTABLE POWER INVERTER

    Yes Static ,a 4060 or 4040 is NOT a eprom , but can clock a eprom .the eprom contents the modified sinewave ,(like on your avatar )so you will not need a microprocessor. A short puls to start after the zeroline 000000001 and a long puls 11111111 at the top(but then in horrable HEX) your clock can also provide the pos and neg half of the sinewave......

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  • goldline commented on vina1991's instructable 220V HOMEMADE PORTABLE POWER INVERTER9 months ago
    220V HOMEMADE PORTABLE POWER INVERTER

    Thanks for your reply, Vina.real sign wave is very difficult to make, this is done with puls width modulation to build the sine like a class D audioamplifier oparate , this is not a easy job.You can build the sine to pwm in a eprom that been clocked at a frequency tomake 50 0r 60 hertz (CD 4060 and crystal) and put the eprom outputs in your fets, with the right ones and zeros in the eprom you get a nice (modified)sinewave.Hope to inspire,

    Dear readers, been in the invertor design for many years , and find out that in this kind of inverters that are very usefull for all kind off electronics with a switchmode power supply (TV , PC ,VCR )or powertransformers .i think you take this inverter to the next level by using a SG3525 IC.this one can be found in old pc powersupply's it can run on 50 or 60 hz by using the right r/c ,and will better protect your fets. even a voltage regulation by feedback is possible, please look up the data sheet, and keep up the good work!

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