Compensation in variable ratio current mirrors

Compensation in variable ratio current mirrors

The accurate control of the current ratio of a variable ratio bipolar current mirror is affected by the finite transistor current gain. Compensation for errors due to low current gain and mismatching of emitter efficiencies can be introduced to cancel these errors.

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Bibliographische Detailangaben
Veröffentlicht in:IEEE journal of solid-state circuits 1997-10, Vol.32 (10), p.1573-1575
1. Verfasser: Langlois, P.J.
Format: Artikel
Sprache:eng
Schlagworte:
Bipolar integrated circuits
Circuit simulation
Differential equations
Electric variables control
Force control
Mirrors
Monitoring
MOSFETs
Tail
Voltage control
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Beschreibung
Zusammenfassung:The accurate control of the current ratio of a variable ratio bipolar current mirror is affected by the finite transistor current gain. Compensation for errors due to low current gain and mismatching of emitter efficiencies can be introduced to cancel these errors.
ISSN:0018-9200
1558-173X
DOI:10.1109/4.634667