Resources Contact Us Home
Forward converter transformer saturation prevention

Image Number 17 for United States Patent #8130517.

A power converter in one aspect limits the magnetic flux in a transformer. A control circuit included in the power converter includes a pulse width modulator, logic circuits and saturation prevention circuits. The saturation prevention circuits assert a first signal when a first integral value of the input voltage reaches a first threshold value and assert a second signal after a delay time that begins when a difference between the first integral value and a second integral value of a reset voltage of the transformer falls to a second threshold value. The logic circuits turn off the switch when the first signal is asserted, and allow the switch to turn on and off in accordance with the pulse width modulator when the second signal is asserted.

  Recently Added Patents
Semiconductor thin film, thin film transistor, method for manufacturing same, and manufacturing equipment of semiconductor thin film
Novelty snacks and method of manufacture of same
Processor engine, integrated circuit and method therefor
One-dimensional metal nanostructures
System and method for detecting deadlock in a multithread program
Device for accurately measuring concentration of component in blood and control method of the device
Control service for relational data management
  Randomly Featured Patents
Controlled stroke electrodynamic oscillating motor compressor
Image stabilizing apparatus
High expansion foam fire-extinguishing system
Packaging system for extending the shelf life of moisture-containing foods
Wheeled stand
Gas turbine engine having flat rated horsepower
Amelioration of human erectile dysfunction by treatment with iNOS, inducers of iNOS or iNOS cDNA
Multi-stage slip clutch for a divided flywheel damper
Light diffusing film, polarizing plate, liquid crystal display device and production method of light diffusing film
Image pickup apparatus for recording a photographed image in a directory