. Electronic apparatus for biological research . l^ 2V V%\r\ wt Figure When A moves positive with respect to earth, diode 1 is cut off, and as A reaches its peak voltage the potential of B above earth is equal to: generator voltage + Ci voltage — 2V\ diode 2 conducts and allows Cg to charge to this potential difference. Notice that the potential at B fluctuates between zero, when A is at peak negative, to +2K, when A is at peak positive. Cockcroft- Walton quadrupler—Suppose we add a further section, comprising two capacitances and two diodes to the top of the doubler circuit already d
. Electronic apparatus for biological research . l^ 2V V%\r\ wt Figure When A moves positive with respect to earth, diode 1 is cut off, and as A reaches its peak voltage the potential of B above earth is equal to: generator voltage + Ci voltage — 2V\ diode 2 conducts and allows Cg to charge to this potential difference. Notice that the potential at B fluctuates between zero, when A is at peak negative, to +2K, when A is at peak positive. Cockcroft- Walton quadrupler—Suppose we add a further section, comprising two capacitances and two diodes to the top of the doubler circuit already described, as in Figure When B swings down to earth potential, diode 3 conducts, allowing Cg to charge from C^ to a voltage 2V. B now swings up to +2K, cutting off D^ and carrying the potential at F up to +4F. D^ then conducts, charging C4 so that the voltage across C4 and Cg in series is also AV.
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