Patent ID: 6204700
Filing Date: 2001-03-20
Classification: H03K

Abstract:
A predriver circuit for controlling a power drive circuit, comprising:a turn on drive circuit having a first analog input adapted to receive a first analog signal and an analog output adapted for connection to an input of a power drive circuit, said turn on drive circuit responsive to one of an active and an inactive state of a first digital control signal to supply an amplified representation of said first analog signal to said analog output, and to the other of an active and inactive state of said first digital control signal to disable supply of said amplified representation of said first analog signal to said analog output; anda turn off drive circuit having a second analog input adapted to receive a second analog signal and an analog output defined by said analog output of said turn on drive circuit, said turn off drive circuit responsive to the other of an active and an inactive state of said first digital control signal to draw an amplified representation of said second analog signal from said analog output, and to said one of an active and an inactive state of said first digital control signal to disable draw of said amplified representation of said second analog signal from said analog output.