Patent ID: 6741133
Filing Date: 2004-05-25
Classification: H03F

Abstract:
A high output amplifier driving a load at its output terminal, comprising:a comparison amplifier having a first input, a second input, and an output, wherein a set voltage is applied to said first input, a voltage of said output terminal is applied to said second input, and said output is generated in response to a difference between the voltage applied to said first input and the voltage applied to said second input; a low-pass filtering device that receives the output of the comparison amplifier, and that performs low-pass filtering of the output of said comparison amplifier and outputs it, a conversion device that converts the output of said low-pass filtering device to complementary signals; and a push-pull output device having a through current on a predetermined level that supplies electrical current to said load and that is driven by said complementary signals, wherein said low-pass filtering device is selected to suppress an increase in said through current in response to a change in said load, wherein said comparison amplifier is a complementary amplifier that generates complementary outputs, and further wherein said low-pass filtering device receives, combines and low-pass-filters said complementary outputs of said comparison amplifier.