ARRL

Forum Home - Rules - Help - Login - Forgot Password
Members can access, post and reply to the forums below. Before you do, please first read the RULES.

Balun, current-voltage-choke

Feb 19th, 15:41

ki515494

Joined: Nov 3rd 2013, 20:21
Total Topics: 0
Total Posts: 0
Can anyone explain what the difference is in these baluns
Feb 20th, 03:27

W1VT

Joined: Apr 4th 1998, 00:00
Total Topics: 0
Total Posts: 0
A voltage balun typically uses transformer coupling to achieve equal and opposite voltages at the output, relative to ground.

A current balun typically chokes off unwanted currents with a high impedance to achieve equal and opposite currents at the output.

Roy, W7EL wrote a paper on baluns
http://www.eznec.com/Amateur/Articles/Baluns.pdf

Zack Lau W1VT
ARRL Senior Lab Engineer

Back to Top