Electroenthusiast
Active Member
How exactly can we design a IC to work in -'ve Logic ?
i.e., IC 7408 should work as High when input is -Vcc and Low when Input is 0v;
How can i make it work as High at +7V and Low only at -7v ? (Something like this.)
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Another Ques: https://www.electro-tech-online.com/threads/transformer.107849/
I know that transformer work on 'change in magnetic flux principle'.
In the below diagram, there's a transformer with its primary windings connected to mains; and the secondary windings is connected to a load. The flow of current through the load is controlled by a switch. When switch is open, there's no current through load and when switch is closed, then there's current through the load.
http://static.electro-tech-online.com/imgcache/1841-43165d1275282701t-
transformer-trans.jpg
My question is:
>'Whether the Current through primary windings OFF/ON based on the the Switch connected to load?'
>On what factors does the maximum output current of transformer depend (Like: rated 500mA/ 1A) ?
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i.e., IC 7408 should work as High when input is -Vcc and Low when Input is 0v;
How can i make it work as High at +7V and Low only at -7v ? (Something like this.)
--------------------------------------------
Another Ques: https://www.electro-tech-online.com/threads/transformer.107849/
I know that transformer work on 'change in magnetic flux principle'.
In the below diagram, there's a transformer with its primary windings connected to mains; and the secondary windings is connected to a load. The flow of current through the load is controlled by a switch. When switch is open, there's no current through load and when switch is closed, then there's current through the load.
http://static.electro-tech-online.com/imgcache/1841-43165d1275282701t-
transformer-trans.jpg
My question is:
>'Whether the Current through primary windings OFF/ON based on the the Switch connected to load?'
>On what factors does the maximum output current of transformer depend (Like: rated 500mA/ 1A) ?
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Last edited: