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openbench:fgen [2007/11/09 17:31] geekabit idea #4: simple proc + chunk of ram |
openbench:fgen [2007/12/03 16:36] geekabit |
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A completely open design for a function/waveform generator: hardware, firmware, software | A completely open design for a function/waveform generator: hardware, firmware, software | ||
- | for more info, read about [[about|openbench]] | + | for more info, read about [[start|openbench]] |
For collected links, try [[http://del.icio.us/ladyada/dds|DDS link on delicious]] and [[http://del.icio.us/ladyada/fgen|Function Gen link on delicious]] | For collected links, try [[http://del.icio.us/ladyada/dds|DDS link on delicious]] and [[http://del.icio.us/ladyada/fgen|Function Gen link on delicious]] | ||
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* Pros: high frequency, adjustable waveform | * Pros: high frequency, adjustable waveform | ||
* Cons: complex | * Cons: complex | ||
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===== Power supply ===== | ===== Power supply ===== | ||
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* Pros: simple, regulated, ultra compact | * Pros: simple, regulated, ultra compact | ||
* Cons: expensive, noisy | * Cons: expensive, noisy | ||
+ | **Idea #4b** Build your own DC/DC converter, a bit like [[http://spritesmods.com/?art=ucboost&page=2|sprite_tm]] did. Have the processor generate the PWM needed for the converter. | ||
+ | * Pros: cheap, same as idea #4 | ||
+ | * Cons: noisy | ||
====== Planned versions ====== | ====== Planned versions ====== |