Hi everyone
Im trying to make a general purpose PWM circuit. Ive been using the 555 before, so naturally i went with that one again.
Problem is, the standard circuit from the datasheet, calculates the duty cycle by Ra/(Rb + 2*Ra), which means the lowest duty cycle will be 50%.
Anyone know a good schematic, with full range (~0% to ~100%) duty cycle?
Im planning to use a TIP35A to drive whatever i want to control - should be more than enough (got a few in spare anyway..)
Thanks in advance.
Im trying to make a general purpose PWM circuit. Ive been using the 555 before, so naturally i went with that one again.
Problem is, the standard circuit from the datasheet, calculates the duty cycle by Ra/(Rb + 2*Ra), which means the lowest duty cycle will be 50%.
Anyone know a good schematic, with full range (~0% to ~100%) duty cycle?
Im planning to use a TIP35A to drive whatever i want to control - should be more than enough (got a few in spare anyway..)
Thanks in advance.