DRV102!

Question

regarding the duty cycle of TO220 How to adjust the duty cycle continuously for example from 20% to 50% to 90% and so on at one operation?

jw0752 · Accepted Answer

I have looked over the data sheet that you linked and if you refer to Table II and Figure 4 they give you the values of the resistor that needs to be connected between the Adjust Pin and ground in order to get a specific duty cycle. You turn the chip on and off by making the input pin High (ON) or Low (OFF). You could install a variable resistor on the adjust pin with a value in the range outlined by the data sheet and then you could adjust your duty cycle much as you would turn up a volume control on a radio. John

jw0752 · Answer

Hi, The designation TO 220 is a case style of a transistor, SCR, or Triac. If properly heat sunk and not over driven the TO-220 case is easily capable of 100% duty cycle. You will have to give us more information on your circuit and application for more information.

John

D_Hersey · Answer

Do you want to make this adjustment with a dial or a computer or something else?