Resources Contact Us Home
Multistand AC/DC converter with baseline crossing detection

Image Number 4 for United States Patent #5654884.

The current invention provides circuitry for use in an integrated circuit controlled voltage doubler/bridge circuit such that during any period wherein a lack of AC supply voltage is detected by the circuitry and following a period of AC input voltage within a lower defined range of values, repeated triac firing pulses are provided such that the AC supply will be rectified and doubled as soon as such a supply returns, whether the supply returns with the same or opposite polarity to that which it had, just before being interrupted.

  Recently Added Patents
Antenna for an automobile
Cartridge for conducting a chemical reaction
Viruses lacking epithelial cell receptor entry
Manufacturing aircraft parts
Positive electrode for secondary battery, and secondary battery
Image erasing apparatus and recording medium conveying method for image erasing apparatus
  Randomly Featured Patents
System and method for mapping instructions associated with haptic feedback
Positive-working, radiation-sensitive mixture based on acid-cleavable and photochemically acid-forming compounds, and the production of relief patterns and relief images
Detachable plug
Adjustable formwork for concrete structures
Apparatus and method for queuing data
Bootstrap of NFC application using GBA
Automated detection and correction of uninitialized variables
Function expansion datacard
Apparatus for feeding sheet material
Low expansion alloys