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
Rose plant named `ESM R057`
Amide derivatives, process for preparation thereof and use thereof as insecticide
Method for switching channels in a wireless communication network
Method of transmitting and receiving a paging message in a mobile communication system
Target output device and extreme ultraviolet light source apparatus
Switched capacitor amplifier
IR(voltage) drop analysis in integrated circuit timing
  Randomly Featured Patents
Spherically agglomerated starches with silicon dioxide
Substituted N-(indole-2-carbonyl) -amides and derivatives as glycogen phosphorylase inhibitors
System and method of pipeline data access to remote data
Successive approximation analog to digital converter
Sonic atomizing spray nozzle
Dynamic user registration method in a mobile communications network
Recreational floatation device
Detection of nucleic acid hybrids by prolonged chemiluminescence
Transportable hoist for lifting large vehicle wheels
Process and apparatus for preheating the combustion mediums used for firing blast furnace stoves