US 11,755,050 B2
Adaptive current mirror circuit for current shaping with temperature
Mohammad Kazemi, Austin, TX (US); and Michael A. Dreesen, Austin, TX (US)
Assigned to Apple Inc., Cupertino, CA (US)
Filed by Apple Inc., Cupertino, CA (US)
Filed on Sep. 7, 2021, as Appl. No. 17/467,910.
Prior Publication US 2023/0074425 A1, Mar. 9, 2023
Int. Cl. G05F 3/26 (2006.01); G11C 11/417 (2006.01); G11C 5/14 (2006.01)
CPC G05F 3/262 (2013.01) [G11C 5/147 (2013.01); G11C 11/417 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
a current generator circuit configured to:
receive an input current; and
generate an output current using the input current and an overdrive voltage, wherein the current generator circuit includes a current mirror circuit configured to receive the input current and further configured to generate the output current based on the overdrive voltage; and
a compensation circuit configured to adjust a value of the overdrive voltage based on temperature, wherein the compensation circuit is configured to adjust a conductance of an output device of the current mirror circuit by adjusting the overdrive voltage.