Patents by Inventor Rein Tiikmaa

Rein Tiikmaa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Low noise, low power, fast startup, and low drop-out voltage regulator
    Patent number: 7397226
    Abstract: A circuit and method for providing voltage regulation that operates with relatively low noise, low power, fast start up and low dropout. The invention includes a constant voltage reference that is coupled to a reference amplifier which amplifies the reference voltage to a selectable level. The output of the reference amplifier is provided to an integrated low pass noise filter which suppresses at least the noise generated by the constant voltage reference and the reference amplifier. The output of the integrated noise filter is provided to the inverting input of an error amplifier, whose non-inverting input is coupled to the output voltage (VOUT). Also, the output of the error amplifier is coupled to a gate of a pass transistor that is coupled between the input voltage (VIN) and the output voltage (VOUT) of the invention.
    Type: Grant
    Filed: January 13, 2005
    Date of Patent: July 8, 2008
    Assignee: National Semiconductor Corporation
    Inventors: Vello Mannama, Rein Sabolotny, Viktor Strik, Rein Tiikmaa