Resources Contact Us Home
Power supply circuit

Image Number 2 for United States Patent #6166588.

A power supply circuit comprising a reference voltage generating circuit and an internal voltage generating circuit, whereby a stable internal voltage can be supplied. The reference voltage generating circuit comprises a resistor, of which one end is coupled to a power supply terminal, and a first NMOSFET, of which the drain electrode is coupled to the other end of the resistor, the source electrode is coupled to an earth terminal, and the gate electrode is coupled to the drain electrode. The internal voltage generating circuit comprises a second NMOSFET, of which the gate electrode is coupled to the drain electrode of the first NMOSFET and the source electrode is coupled to the earth terminal, and a constant voltage generating circuit, coupled between the drain electrode of the second NMOSFET and the power supply terminal, which outputs a constant voltage. The gate length of the first NMOSFET is formed longer than the gate length of the second NMOSFET.

  Recently Added Patents
Liquid crystal display wherein the data lines covered by each pixel electrode are supplied with data signals of opposite polarities
Distylium plant named `PIIDIST-II`
Magnetic levitation motor used in lens module
Optical modulator module
Optical module for a microlithography objective including holding and supporting devices
Resin composition, prepreg, resin sheet, metal-clad laminate, printed wiring board, multilayer printed wiring board and semiconductor device
  Randomly Featured Patents
Arrangement for laser pumping in a combined laser recording and color projection system
Inline compensator for a floating drill rig
Frame structure having non-symmetrical slot assignments for mobile communications
Hand held electric mixer
Method for application of porous wash coats to low porosity refractory catalytic monoliths and the resulting support
Image reading apparatus
Method of producing aluminum
Hydraulic control system of an automatic transmission for a vehicle
Vial adaptor for regulating pressure
System and method for handoff of mobile terminals between different wireless access network technologies