Need circuit for a PWM signal of 3 to 5 kHz

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hello friends!!!!!!!!
can anybody provide me the circuit for PWM of 3 to 5 KHz and duty cycle ranging from 30 to 80%, its urgent please help me out.

Thanks!!!!!!!!
 

pwm for zilog

You could use a 555 timer, an oldie, but a goldie. See Figure 8 in the following:
**broken link removed**
If you need more sophistication Microchip's dsPIC30F2020 is a 16-bit micro designed for PWM applications.
In between are all kinds of things. Everybody from Analog Devices to Zilog makes something that works as a PWM. What is your application?
 

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