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Microcontroller selection

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dm927

New Member
Hello,

I am reletively new to working with microcontrollers. However, I have done some similar programming.

I am looking for a relatively inexpensive microcontroller or other chip that I could program a 60 Hz sinusoidal PWM signal using a 20 kHz switching frequency. I want something as small as possible that will hold up well. What should I look for in such a device? Does anyone know where I can get a microcontroller that will do the job? I looked at the Microchip 18F452 and it seems to be ok. However, I want something smaller and cheaper that will provide the same function. Thanks.
 

MarkK

New Member
dm927 said:
Hello,

I am reletively new to working with microcontrollers. However, I have done some similar programming.

I am looking for a relatively inexpensive microcontroller or other chip that I could program a 60 Hz sinusoidal PWM signal using a 20 kHz switching frequency. I want something as small as possible that will hold up well. What should I look for in such a device? Does anyone know where I can get a microcontroller that will do the job? I looked at the Microchip 18F452 and it seems to be ok. However, I want something smaller and cheaper that will provide the same function. Thanks.

Take your PIC :
**broken link removed**
 

kentken

New Member
16F87X series or the 18F452 series are great. The only this is that the 18F series take use a different programing sequence. Look into programers at the same time.
 

crust

Member
You might also consider the Atmel AVRs, they are also quite popular, and have a different architecture than the PICs .... whatever makes you more comfortable.
 

crust

Member
You can also do a search on the CORDIC algorithm which makes it very easy to generate sinusoids with a variable phase increment. This is particularly helpful if you want higher resolution because the look up tables become excessive.
 
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