GoGreenElectricsLTD
Member
I have an existing adjustable TL783 based PSU which I bought from Ebay. I intend to use this to limit voltage and provide a smooth power output. I hope to set it at 90vdc. The input power source being a wind turbine rages from Zero vdc to 130vdc. However there is a dump load controller set to 95vdc with a large capacitor and this diverts much of the unwanted power to a large resistor bank. The TL783 will be used after the capacitor and dump load.
Even so when the dump load is in operation there is significant ripple produced by the dump load pulsing on-off-on-off at 4Hz. This ripple is still faily large and needs to be smoothed out. The purpose of the regulator is to stabilise the final output to a steady DC ceiling when at maximum power. Anything below the 90v threshold is not a problem as the dump load will not be activating below its 95v set point.
I believe the TL783 PSU circuit could do this. But I would also need to connect a couple of 300w MOSFETS to handle the high level of power, I think these will work -
**broken link removed**
Please could someone help me to design a small ADD-ON circuit to work as I have described above ?.
Thanks
Rob
Even so when the dump load is in operation there is significant ripple produced by the dump load pulsing on-off-on-off at 4Hz. This ripple is still faily large and needs to be smoothed out. The purpose of the regulator is to stabilise the final output to a steady DC ceiling when at maximum power. Anything below the 90v threshold is not a problem as the dump load will not be activating below its 95v set point.
I believe the TL783 PSU circuit could do this. But I would also need to connect a couple of 300w MOSFETS to handle the high level of power, I think these will work -
**broken link removed**
Please could someone help me to design a small ADD-ON circuit to work as I have described above ?.
Thanks
Rob
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