US 7,321,270 B2 | ||
Current-controlled CMOS ring oscillator circuit | ||
Khalid Ouici, Kelowna (Canada) | ||
Assigned to ESS Technology, Inc., Fremont, Calif. (US) | ||
Filed on Apr. 13, 2006, as Appl. No. 11/404,443. | ||
Claims priority of provisional application 60/671423, filed on Apr. 14, 2005. | ||
Prior Publication US 2006/0232345 A1, Oct. 19, 2006 | ||
Int. Cl. H03B 5/24 (2006.01) |
U.S. Cl. 331—57 [331/175] | 5 Claims |
1. A ring oscillator having an odd number of inverters connected in series, the output of one inverter being connected to the input of the next inverter to form a closed ring of inverters, each inverter having a power supply input and a ground connection, a signal input and a signal output, and with a current mirror inverter pair in signal input to signal output series between the signal input and signal output, and in head to tail series between the power supply input and the ground. |