Ac input free power source

Details Ac input free power source Ac input free power source

H - Electricity

02

M

328/169, 321/65

H02M 3/155 (2006.01) H02M 1/10 (2006.01) H02M 7/06 (2006.01)

Patent

CA 1276991

ABSTRACT OF THE DISCLOSURE An AC input-free power source comprising a power transformer for receiving an AC input, a rectifier connected to said power transformer for converting the AC input into a DC output, and a switching transistor so driven as to produce a stable current by the switching action thereof. A primary voltage detection circuit is provided with the switching transistor used as a first switching transistor, wherein the voltage to be applied thereto is obtained substantially from the center of the secondary winding of the power transformer, while the AC input voltage is detected and a control signal is outputted in accordance with the value of the detected voltage. A switching input voltage changeover circuit has a second switching transistor and, in response to the control signal, changes the first and second switching transistors selectively for execution of switching action.

527552

Affiliated with

Also associated with

Rating

Ac input free power source does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ac input free power source, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ac input free power source will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1331017