Patent ID: 6958626
Filing Date: 2005-10-25
Classification: H03K

Abstract:
1. A driver, comprising: a pull up transistor for switching the output of said driver to a high voltage; a pull down transistor for switching the output of said driver to a low voltage; a first current mirror transistor coupled to said pull up transistor for controlling the current transmitted to a load connected to said driver when said output is at the high voltage; a second current mirror transistor coupled to said pull down transistor for controlling the current transmitted to said load when said output is at the low voltage; a plurality of third current mirror transistors coupled to said first current mirror transistor, said third current mirror transistors controlling the current transmitted by said first current mirror transistor and each of said third current mirror transistors being coupled to a switching transistor for activating and deactivating said third current mirror transistor; and a plurality of fourth current mirror transistors coupled to said second current mirror transistor, said fourth current mirror transistors controlling the current transmitted by said second current mirror transistor and each of said fourth current mirror transistors being coupled to a switching transistor for activating and deactivating said fourth current mirror transistor.