Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronic Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Degaussing remanence of toroid

Status
Not open for further replies.

neazoi

Advanced Member level 5
Joined
Jan 5, 2008
Messages
3,580
Helped
13
Reputation
26
Reaction score
8
Trophy points
1,318
Location
Greece
Activity points
33,170

FvM

Super Moderator
Staff member
Joined
Jan 22, 2008
Messages
47,667
Helped
14,078
Reputation
28,413
Reaction score
12,742
Trophy points
1,393
Location
Bochum, Germany
Activity points
276,933
Color TVs used to drive the degauss coil of the shadow mask tube by mains voltage, fed though a special double NTC/resistor combination that generated a current waveform similar to that in your link. You might review articles and text books describing the technique.
 

crutschow

Advanced Member level 5
Joined
Feb 22, 2012
Messages
3,771
Helped
900
Reputation
1,798
Reaction score
881
Trophy points
1,393
Location
L.A. USA Zulu -8
Activity points
21,227
A voltage step input, such as caused by turning on a switch, into an RC differentiator (HP filter) consisting of a series C followed by an R to ground will give an exponential decay of voltage. That can be amplified to drive an exponential decay of current into the core winding.
 
Last edited:

Status
Not open for further replies.
Toggle Sidebar

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top