Is it possible to create a 10 us logic high signal and 40 us low then 10 us high again with 555 timer as shown below?
I have tried to change the values of R1, R2 and C1 but that process didn’t let me have a time low longer than time high.
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tH must be greater than 50% with basic 555 circuit. – StainlessSteelRat Nov 28 '22 at 17:36
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@StainlessSteelRat ye i figured that so how can i add a delay in this case then? – Neverhadagf Nov 28 '22 at 17:38
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2You could use 2. First giving 50μs as a multivibrator and second as a 10μs one shot. But 1 will not do as you want. – StainlessSteelRat Nov 28 '22 at 17:40
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7You can add an extra transistor for inverting the signal. – a concerned citizen Nov 28 '22 at 17:49
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As @aconcernedcitizen says use a npn, base resistor and collector resistor to flip polarity with 80% duty cycle. – StainlessSteelRat Nov 28 '22 at 19:18
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Not the best solution, but this can also be useful ...
R2 & R3 are the two parts of a potmeter, it adjusts the duty cycle.
Antonio51
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