| 发明名称 | Chopper amplifier | ||
| 摘要 | Various apparatuses and methods are described where a signal is amplified using a chopper amplifier arrangement, and ripples caused by said chopper amplifier arrangement are reduced. In some cases, this reduction of ripples is performed by controlling a voltage offset of an amplifier of said chopper amplifier arrangement. In other embodiments, a detection of ripples or a chopping of the chopper amplifier arrangement is at least temporarily disabled. | ||
| 申请公布号 | US9595922(B2) | 申请公布日期 | 2017.03.14 |
| 申请号 | US201213680135 | 申请日期 | 2012.11.19 |
| 申请人 | Infineon Technologies AG | 发明人 | Maderbacher Gerhard;Motz Mario |
| 分类号 | H03F1/26;H03F3/393;H03F3/387;H03F3/45;H03F3/00 | 主分类号 | H03F1/26 |
| 代理机构 | Shumaker & Sieffert, P.A. | 代理人 | Shumaker & Sieffert, P.A. |
| 主权项 | 1. An apparatus, comprising: a chopper amplifier arrangement comprising a modulator, an amplifier and a demodulator, a ripple detector to detect ripples caused by said chopper amplifier arrangement and to adjust a voltage offset of said amplifier based on the detected ripples, and a system having an output, said output of said system being coupled with an input of said modulator, wherein an output of said demodulator is coupled with a control terminal of said system. | ||
| 地址 | Neubiberg DE | ||