发明名称 |
POWER-EFFICIENT CHOPPER AMPLIFIER |
摘要 |
In an example, an electrical circuit device for amplifying a physiological signal includes a modulation unit configured to receive an input signal, to modulate the input signal to produce a modulated signal. The device also includes an amplification and transconductance unit configured to amplify an amplitude of the modulated signal and increase a transconductance of the modulated signal to produce a transconductance enhanced modulated and amplified signal, where the amplification and transconductance unit comprises at least a first complementary pair of transistors and a second complementary pair of transistors configured to receive the modulated signal and to amplify and increase the transconductance of the modulated signal. The device also includes a demodulation unit configured to receive the transconductance enhanced modulated and amplified signal and to demodulate the signal. |
申请公布号 |
US2016065133(A1) |
申请公布日期 |
2016.03.03 |
申请号 |
US201414474858 |
申请日期 |
2014.09.02 |
申请人 |
Medtronic, Inc. |
发明人 |
Cong Peng;Terry Michael B. |
分类号 |
H03F1/02;A61B5/0476;A61B5/0402;A61B5/00;A61B5/01;A61B5/04;A61B5/11;H03F3/45;A61B5/0488 |
主分类号 |
H03F1/02 |
代理机构 |
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代理人 |
|
主权项 |
1. An electrical circuit device for amplifying a physiological signal, the device comprising:
a modulation unit configured to receive an input signal, to modulate the input signal to produce a modulated signal; an amplification and transconductance unit configured to amplify an amplitude of the modulated signal and increase a transconductance of the modulated signal to produce a transconductance enhanced modulated and amplified signal, wherein the amplification and transconductance unit comprises at least a first complementary pair of transistors and a second complementary pair of transistors configured to receive the modulated signal and to amplify and increase the transconductance of the modulated signal; and a demodulation unit configured to receive the transconductance enhanced modulated and amplified signal and to demodulate the transconductance enhanced modulated and amplified signal to generate a chopper-stabilized amplified version of the input signal. |
地址 |
Minneapolis MN US |