(19)
(11) EP 1 235 464 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
14.03.2007 Bulletin 2007/11

(43) Date of publication A2:
28.08.2002 Bulletin 2002/35

(21) Application number: 02076917.0

(22) Date of filing: 20.12.1996
(51) International Patent Classification (IPC): 
H05B 6/80(2006.01)
H02K 11/00(2006.01)
H05B 6/68(2006.01)
H05B 6/66(2006.01)
(84) Designated Contracting States:
DE FR GB

(30) Priority: 21.12.1995 KR 9572263
18.07.1996 KR 9628990
31.10.1996 KR 9649966

(62) Application number of the earlier application in accordance with Art. 76 EPC:
96309356.2 / 0781074

(71) Applicant: SAMSUNG ELECTRONICS CO., LTD.
Suwon-City, Kyungki-do (KR)

(72) Inventors:
  • Jeon, Nam-Sik
    Suwon-city, Kyungki-do (KR)
  • Kim, Yoon-Gon
    Suwon-city, Kyungki-do (KR)

(74) Representative: Robinson, Ian Michael et al
Appleyard Lees 15 Clare Road
Halifax HX1 2HY
Halifax HX1 2HY (GB)

   


(54) Driving Circuit of Turnable Motor in Microwave Oven


(57) The present invention relates in general to a driving circuit of a turntable motor in microwave oven, and more particularly to a driving circuit for driving a turntable motor which is operated at a low voltage. Advantageously, a low-voltage turntable motor is smaller and more cost effective than in the prior art. The driving circuit includes: voltage changing means for transforming a commonly used AC power supply into a low level voltage, such as a transformer (143). Optionally, the driving circuit also comprises control means (180) for generating a control signal according to a key signal generated from key input means (170); and switching means (150) for selectively supplying the low level voltage generated from the voltage changing means (143) according to the control signal generated from the control means (180).







Search report