基本信息:
- 专利标题： BREAK-BEFORE-MAKE DISTORTION COMPENSATION FOR A DIGITAL AMPLIFIER
- 专利标题（中）：失真补偿，且不ÜERLAPPUNGFOR数字放大器
- 申请号：EP00952211.1 申请日：2000-07-26
- 公开(公告)号：EP1201026A1 公开(公告)日：2002-05-02
- 发明人： MIAO, Guoqing , DELANO, Cary, L.
- 申请人： Tripath Technology, Inc.
- 申请人地址： Suite 200,3900 Freedom Circle Santa Clara, CA 95054 US
- 专利权人： Tripath Technology, Inc.
- 当前专利权人： Tripath Technology, Inc.
- 当前专利权人地址： Suite 200,3900 Freedom Circle Santa Clara, CA 95054 US
- 代理机构： Browne, Robin Forsythe, Dr.
- 优先权： US146430P 19990729; US624521 20000724
- 国际公布： WO0110017 20010208
- 主分类号： H03F3/38
- IPC分类号： H03F3/38 ; H03F21/00 ; H03F3/217
摘要：
Methods and apparatus are described for reducing or eliminating break-before-make, i.e. dead time distortion, in switching amplifiers. A switching amplifier (M1, M2) has an input stage (510) for generating a switching signal. Break-before-make distortion compensation circuitry (504) alters the switching signal. Break-before-make generator circuitry (506) generates two drive signals from the altered switching signal. A power stage includes two switches (D1, D2) which are alternately driven by the two drive signals. Break-before-make distortion detection circuitry (502) detects a distortion pattern at the power stage output node and controls the break-before-make distortion compensation circuitry (504) to alter the switching signal in response to the distortion pattern detected to thereby eliminate at least some break-before-make distortion.
IPC结构图谱:
| H | 电学 |
| --H03 | 基本电子电路 |
| ----H03F | 放大器 |
| ------H03F3/00 | 只带有电子管或只带有半导体器件作为放大元件的放大器 |
| --------H03F3/38 | .输入端有调制器、输出端有解调器的直流放大器；专门用于此种放大器的调制器或解调器 |