Patent ID: 6172556
Filing Date: 2001-01-09
Classification: G05F

Abstract:
A method of generating an output current comprising the steps of:(a) providing a current mirror that containsa first current-generating device having a first input terminal, a first output terminal and a first control terminal, anda second current-generating device having a second input terminal, a second output terminal and a second control terminal, and whereinsaid first input terminal is coupled to a first voltage supply terminal, said first control terminal is coupled to said second control terminal, said second input terminal is coupled to said first voltage supply terminal, and said second output terminal is coupled to receive a reference current, and said first output terminal provides a prescribed output current in accordance with a first voltage applied across said first input terminal and said first output terminal for a second voltage applied across said first control terminal and said first input terminal; and(b) controlling the operation of said first current generating device so as to maintain said prescribed output current at said first output terminal in the presence of a change in said first voltage applied across said first input terminal and said first output terminal.