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brainbaby
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As involvement of emitter resistor in current mirrors has certain drawbacks like restricting the output voltage range to a lower value..thus in order to cancel the draw back of emitter resistors they say to use a
Widlar current mirror …Widlar current mirror is designed to provide very small output currents without requiring very high resistance values(Re) or drastically restricting the output voltage range…..how exactly thus Widlar current mirror does it…yet it involves two resistors( R and Re)..??
Widlar current mirror …Widlar current mirror is designed to provide very small output currents without requiring very high resistance values(Re) or drastically restricting the output voltage range…..how exactly thus Widlar current mirror does it…yet it involves two resistors( R and Re)..??
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