Low-Drop Current Source

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< PIC Project ~ Low-Drop Current Source

eric

Posted: Sun Aug 27, 2006 6:37 am Post subject: Low-Drop Current Source

Site Admin Joined: 01 Jan 1970 Posts: 311

All simple constant-current sources generally operate on the
same principle: a current is allowed to flow through a resistance
and some sort of regulator is used to try to hold the voltage
across this resistance constant. If this is done using a transistor,
there must be a voltage drop of approximately 0.6 V
over the resistor in order to forward bias the base. However,

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