IT1246066B - Protection circuit - Google Patents

Protection circuit

Info

Publication number
IT1246066B
IT1246066B ITTO910316A ITTO910316A IT1246066B IT 1246066 B IT1246066 B IT 1246066B IT TO910316 A ITTO910316 A IT TO910316A IT TO910316 A ITTO910316 A IT TO910316A IT 1246066 B IT1246066 B IT 1246066B
Authority
IT
Italy
Prior art keywords
controlled
motor
switch
controlled switch
driven
Prior art date
Application number
ITTO910316A
Other languages
Italian (it)
Inventor
Enrico Bosco
Walter Strocco
Original Assignee
Bitron Video
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bitron Video filed Critical Bitron Video
Priority to ITTO910316A priority Critical patent/IT1246066B/en
Publication of ITTO910316A0 publication Critical patent/ITTO910316A0/en
Publication of ITTO910316A1 publication Critical patent/ITTO910316A1/en
Application granted granted Critical
Publication of IT1246066B publication Critical patent/IT1246066B/en

Links

Landscapes

  • Control Of Ac Motors In General (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

The present invention relates to a protection circuit for an electric motor, particularly a motor for rotating a drum of a washing machine, the speed of which can be varied by a power supply controlled by phase angle and supplied through a first controlled switch which is driven by an electronic circuit which senses the speed of rotation of the motor. The principal characteristic of the invention consists in the fact that a second controlled switch is connected in series with the said first controlled switch, and is driven by the electronic circuit in such a way as to conduct at practically the same time as the first switch, and that there are provided means which, when one of the two controlled switches becomes short-circuited, cut off the power supply to the electric motor, in such a way as to stop it, for at least the whole of the time for which the short-circuit condition is maintained.
ITTO910316A 1991-04-30 1991-04-30 Protection circuit IT1246066B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ITTO910316A IT1246066B (en) 1991-04-30 1991-04-30 Protection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO910316A IT1246066B (en) 1991-04-30 1991-04-30 Protection circuit

Publications (3)

Publication Number Publication Date
ITTO910316A0 ITTO910316A0 (en) 1991-04-30
ITTO910316A1 ITTO910316A1 (en) 1992-10-30
IT1246066B true IT1246066B (en) 1994-11-07

Family

ID=11409303

Family Applications (1)

Application Number Title Priority Date Filing Date
ITTO910316A IT1246066B (en) 1991-04-30 1991-04-30 Protection circuit

Country Status (1)

Country Link
IT (1) IT1246066B (en)

Also Published As

Publication number Publication date
ITTO910316A0 (en) 1991-04-30
ITTO910316A1 (en) 1992-10-30

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Legal Events

Date Code Title Description
0001 Granted