DC drive

You will need to provide a more detailed explanation of what you are looking for. Also, have you already tried a web search?

Tom

I am looking for a simple , smooth regulation of RPM for a 20 Vlts; 100 Watt Motor through SCR.

OK, that's good information to allow others to help, but still more is needed. What is your power source? AC? DC? Voltage level? More details on the motor would help too, do you have a model number?

Tom

Power source is DC, voltage 100. Motor 90 Volts, 10 AMP. I don't have the model #. Thanks for your help.

Are you sure about those figures? In your #2 you mentioned a 100W motor; this one is closer to 1kW.

Also said 20V motor in earlier post. PLEASE get your facts correct before posting, incorrect information is almost worse than none at all. At least with too little information given, we can make some general assumptions, when incorrect information is given, we answer based on that, and that's wasting everyone's time.....

Tom

Motor is 90 Volts, 10 AMP. Power source is 100 Volt DC. I need a way to regulate speed because current speed is too high. I tried different options this is why I gave you different figures. This is a motor that powers a tread mill. I was hoping to get the basic schematics of a DC drive so I can regulate the speed.

I am sorry about the confusion.