Eesti leiutised: Low noise, low power, fast startup, and low drop-out voltage regulator august 28, 2008
Posted by Mikk Putk in Eesti leiutised, Leiutajad, Leiutised, Patendiinformatsioon.Tags: integrated circuit, voltage regulator
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Leiutajad Vello Mannama, Rein Sabolotny, Viktor Strik, Rein Tiikmaa on koostöös USA ettevõttega National Semiconductor Corporation saanud Ameerika ühendriikide patendi
US7397226: Low noise, low power, fast startup, and low drop-out voltage regulator
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.
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