Patent ID: 7501908
Filing Date: 2009-03-10
Classification: G05F,H03K,H03L

Abstract:
1. An oscillation circuit comprising: an output current mirror; a P-N complementary current mirror having the same structure as the output current mirror but having current that is only 1/k times the current of the output current mirror, wherein k is greater than 1; a P-type current mirror connected to the P-N complementary current mirror, the P-type current mirror having current that is m times the current of the P-N complementary current mirror, wherein m is greater than 1; and an N-type current mirror having one end connected to the P-type current mirror and another end connected to the output current mirror, the N-type current mirror having current that is n times the current of the P-type current mirror, wherein and n is greater than 1.