SCR (silicon controlled rectifier) based AC/DC voltage regul

scr as a rectifier

i want to design SCR (silicon controlled rectifier) based AC/DC voltage regulator.cn anybody suggest me the circuit for that.

scr converter voltage

it watches if this serves to you

ac dc rectifier circuit

read this book:
Power Converter Circuits
WILLIAM SHEPHERD
LI ZHANG

ac scr

this book is on converters.i want to use scr as regulators.

chapter silicon controlled rectifier

Read this document:

scr based ac to dc conversion

You may have to design two separate circuits then cascade them. The first circuit is a rectifier which may not need SCRs (Diodes can do); then a DC/DC converter (voltage regulator).

silicon controlled rectifier ac-dc

this book is on converters.i want to use scr as regulators.

Click to expand...

Without basic knowledge of power electronis, it may be necessary to read more than the title to understand how the literature is related to your problem. Actually the book has a complete chapter on controlled rectifiers, it is valuable to understand the operation principles and possible design variations. AC/DC circuits are generally regarded as power converters, by the way.

You can design a scr "regulator" from the scratch using standard components and basic electronic circuits as building blocks, e. g. ramp generator, PI controller, comparator, trigger pulse generator. The circuit shown by largosoft should be a starting point.

P.S.: Using a saturated BJT (or more general, a turn-off-capable switch) instead of a SCR as in the patent presentec by mister_rf, is also a good idea. It reduces control process deadtime considerably and eases voltage regulation, but increases power circuit complexity. Also additional measures to prevent from switch desaturation may be necessary.