SWITCHING POWER SUPPLY
PROBLEM TO BE SOLVED: To suppress surge voltage due to high-speed on/off-control of field effect transistors with respect to a switching power supply, so constructed as to rectify the induced voltage of the secondary winding of a transformer through on/off-control of the field effect transistors. SO...
Gespeichert in:
Hauptverfasser: | , |
---|---|
Format: | Patent |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext bestellen |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | PROBLEM TO BE SOLVED: To suppress surge voltage due to high-speed on/off-control of field effect transistors with respect to a switching power supply, so constructed as to rectify the induced voltage of the secondary winding of a transformer through on/off-control of the field effect transistors. SOLUTION: In the switching power supply; a primary switching circuit 1 is controlled by a control circuit 3 to control turn-on/off of voltage applied to the primary winding of a transformer 2, and the induced voltage of the secondary winding of this transformer 2 is rectified through the on/off-control of field effect transistors Q1, Q2 by the control circuit 3 and is smoothed through a choke coil L and a capacitor C. A capacitor C1, C2 for surge voltage suppression is connected between the gate G and the drain D of each of the field effect transistors Q1, Q2. COPYRIGHT: (C)2008,JPO&INPIT |
---|