Trident, current regulator errrors!
Bjorn Julin
bnillson at hotmail.com
Sat Oct 21 04:37:16 CEST 2000
Mr possum is dead, miss possum is next to be stirred!!
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X-X
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Im not entierly satisfied by the Trident current regulator,
for Q1 has an error, bias current, to compensate for this error one must use
a hig gain device also if one wants
to regulate small currents the input bias current of
the buffer OP amp gives an error to!
Maybe im paranoid?
Am I?
Is those errors the reason why Korg offseted the
entire V to V expoconverter cirquit by -10V so
the span of the CV is always less then GND?
Another error is the clamp diode, maybe a 1n4148 is
not such a good idea here due to current leakage??
Any recomendations for a better one?
By matching the current regulator transistor for every
CCO in beta and Rbe (last only dependent at high currents)
i got better performance.(less phasing).
I dont think the LF353 be any worser then the TL072!
And where the hell comes the +5V A and B from????
Reg
BJ
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