Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Liquid crystal display panel
Display screen or portion thereof with graphical user interface
Method for drug screening and characterization by calcium flux
Method for producing carrier on which microorganisms capable of conducting multiple parallel mineralization are immobilized, column reactor and solid medium for cultivating plants
Method and system for selecting a target with respect to a behavior in a population of communicating entities
Heap/stack guard pages using a wakeup unit
Agent for expelling parasites in humans, animals or birds
  Randomly Featured Patents
Brake system which maintains brake force distribution upon system malfunction while partially disabling anti-lock and traction slip
Amplifier
Ventilator hood
Precision tweezers
Tire
Pet food containing Perna canaliculus for maintenance of joint health and alleviation of arthritic symptoms
Transport roller, transport device and printing apparatus
Cleaning and storing device for a prophylactic
ZnO based semiconductor device manufacture method
Right angle type spring connector