Title :
The suppressing harmonic currents, MS (magnetic-switch) power supply
Author :
Watanabe, Haruo ; Kobayashi, Yoshinori ; Sekine, Yutaka ; Morikawa, Masato ; Ishii, Takuya
Author_Institution :
Sindengen Electr. Mfg. Co. Ltd., Saitama, Japan
Abstract :
A new power supply which suppresses harmonic currents is proposed. The circuit is made up by inserting a choke coil and a transformer winding between the bridge rectifier and the input capacitor of an ordinary capacitor input-type power supply. The characteristics of the circuit use the transformer winding like a switch (a magnetic switch), and has a function to improve the power factor and to suppress harmonic currents. As this MS power supply has only one switch (MOSFET) and one control circuit, the whole circuit is simple, inexpensive, and meets IEC 1000-3-2 Class D standards concerning the harmonic currents of switching power supplies
Keywords :
field effect transistor switches; harmonic distortion; magnetic switching; power MOSFET; power field effect transistors; power semiconductor switches; power system harmonics; power transformers; switched mode power supplies; switching circuits; transformer windings; bridge rectifier; choke coil; circuit characteristics; harmonic currents suppression; input capacitor; magnetic switch power supply; power MOSFET switch; switching power supplies; transformer winding; Coils; IEC standards; Inductors; Magnetic switching; Power supplies; Power system harmonics; Switched capacitor circuits; Switches; Switching circuits; Windings;
Conference_Titel :
Telecommunications Energy Conference, 1995. INTELEC '95., 17th International
Conference_Location :
The Hague
Print_ISBN :
0-7803-2750-0
DOI :
10.1109/INTLEC.1995.499048
