公开(公告)号：US06667660B2

公开(公告)日：2003-12-23

申请号：US09918190

申请日：2001-07-30

申请人： Karl Schrödinger ,  Jaro Stimma

发明人： Karl Schrödinger ,  Jaro Stimma

IPC分类号： H03F304

CPC分类号： H03G1/0029

摘要： A temperature sensor has a first FET transistor circuit, whose operating point is located at the temperature-independent point, and a second FET transistor circuit whose operating point is above this point. The voltage difference in this case depends essentially linearly on the temperature. In addition, a circuit for controlling the gain of an amplifier circuit is provided, in which the current through the amplifier circuit at low temperatures is reduced by an appropriate control of the gate voltage of a transistor serving as a current source, so that an amplification which is substantially independent of temperature is carried out.

公开(公告)号：US06642790B2

公开(公告)日：2003-11-04

申请号：US10122628

申请日：2002-04-15

申请人： Karl Schrödinger ,  Jaro Stimma

发明人： Karl Schrödinger ,  Jaro Stimma

IPC分类号： H03F345

CPC分类号： H03F3/45251 ,  H03F3/45237 ,  H03F3/4565 ,  H03F2203/45418 ,  H03F2203/45458 ,  H03F2203/45476 ,  H03F2203/45631

摘要： A differential amplifier has two amplifier paths. The second amplifier path is operated in the opposite direction relative to the first amplifier path. The outputs of the two amplifier paths form a differential output and are in each case connected to one another via a respective load resistor at a node. The operating point of the two amplifier paths is set by the voltage that is present at the node. The differential load is divided into two individual resistors and the voltage present between the individual resistors serves for setting the operating point of the amplifier paths. The bandwidth and the gain can be influenced by varying the resistances of the load resistors.

摘要翻译： 差分放大器有两个放大器路径。 第二放大器路径相对于第一放大器路径在相反方向上工作。 两个放大器路径的输出形成差分输出，并且在每种情况下通过节点处的相应负载电阻彼此连接。 两个放大器路径的工作点由存在于节点处的电压来设定。 差分负载分为两个单独的电阻，各个电阻之间的电压用于设置放大器路径的工作点。 可以通过改变负载电阻的电阻来影响带宽和增益。