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
Cis-alkoxy-substituted spirocyclic 1-H-pyrrolidine-2,4-dione derivatives
Device for preparing a body fluid for a bacteriological analysis
Tool bag with removable tool wall
Cable sheath
Content protection apparatus and content encryption and decryption apparatus using white-box encryption table
  Randomly Featured Patents
Portable electronic bingo device
Method for determination of glycols and polyglycols in drilling fluid filtrates
Sensor for non-invasive measurement of sound, pressure and vibration on the human body
High lift dump box
Combination hassock and Christmas tree holder
Method for capacity evaluation in OFDM networks
Window shade
Automatic sample collector
Stump remover
Apparatus and method for cutoff register control for diaper machines