Patents Represented by Attorney Lerner: Herbert L.

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  • Fast sample and hold circuit configuration
    Patent number: 5039880
    Abstract: A sample and hold circuit configuration for differential signals with reduced holding capacity includes an amplifier in which the same current ratios prevail in the collector circuit and in the emitter circuit. The base currents are discharged through additional transistors and therefore the same currents flow and equal voltage ratios prevail in the collector and emitter resistors, and an additional diode is connected in each collector circuit.
    Type: Grant
    Filed: April 24, 1990
    Date of Patent: August 13, 1991
    Assignee: Siemens Aktiengesellschaft
    Inventors: Berthold Astegher, Alexander Lechner, Hermann Jessner