Patents Assigned to CACTUS SEMICONDUCTOR, INC.
  • Pseudo-random chopper amplifier
    Patent number: 10038408
    Abstract: A chopper stabilized amplifier that utilizes a multi-frequency chopping signal to reduce chopping artifacts. By utilizing a multi-frequency chopping signal, the amplifier DC offset and flicker noise are translated to the higher chopping frequencies but are also smeared, or spread out in frequency and consequently lowered in amplitude. This lower amplitude signal allows for less stringent filtering requirements.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: July 31, 2018
    Assignee: Cactus Semiconductor, Inc.
    Inventor: Scott Cameron McLeod
  • Compliance voltage detector circuit
    Patent number: 9739809
    Abstract: A system, method, and circuit to monitor a compliance voltage in an implantable stimulator device. An implantable medical device with a compliance voltage detector to monitor the voltage used by an output current source/sink circuit to ensure proper circuit performance while limiting power use.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: August 22, 2017
    Assignee: CACTUS SEMICONDUCTOR, INC.
    Inventor: Paul F. Illegems