I have this nice little waveform generator, which I bought on eBay, that goes all the way up to 50MHz. That's good stuff. Bad stuff is that it outputs sinusoidal waves from the minimum of 0V to the maximum of +5V. Now my table top power supply or batteries, supply only the voltage from zero upwards.I would much prefer for this waveform generator to outputs sinusoidal wave from -0.5V to +0.5V. Is there a some kind of mysterious circuit that can drop the output 0.5V, so I can get a negative voltage of 0.5V?
- how is capacitor going to reverse polarity if one of cpacitor's terminals is always ground?
- is there a formula for matching C and frequency?
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