Gravity assisted power project- GRAM

[burnit0017]

Hi, thanks again. My project is a attempt to find a configuration that will combine a small amount of electricity with mechanical advantage and gravity at the input that will produce a max torque at the output shaft.  The output shaft will drive a PMA. I plan to use Buck converter with a variable duty cycle  at the output of the PMA. The electricity generated at the output will be less then 50% of the max torque of the output shaft.
I will post results when available.  Thanks again.

[Low-Q]

Just a tip for your project:
If you want to calculate energy, you must multiply torque with displacement. Torque is usually measured in punds pr feet or Newton per meter radius.


A buck converter is useful. These small devices increase voltage output on expense on current input. If you want to power a 10W load that runs on 20V @ 0.5 Ampére, and the input voltage is 10V, then the buck conveter will draw 1 Ampére from the input. So a buck converter does not increase energy output. The more expensive ones have an efficiency of approx 90-95%, which means for each watt output, it draws 1.05 - 1.1W at the input. Think of a inverted pulley with ropes. You must displace 1 meter of rope at 2kg force to lift a 1kg weight 2 meters up.


Good luck :-)


Vidar

[burnit0017]

DC to DC step down converter = Buck converter

https://youtu.be/B3dLzZZ5jKQ

[Low-Q]

You can also buy them as DC to DC step UP converters. Amazingly how stable the output voltage is when you load them. I use such a converter to power my DIY aux head lights on my car. From the 12V car battery, this converter outputs 30V @ 3.2A, and if I hook off the load, the voltage is still 30V. I had to hook it directly on to the battery with a 10A fuse, and a relay, because the converter draws 9A from the battery, and the fuse in the car will blow if I power the converter directly from the head lights.
My LED aux lights are 2 x 5 LEDs at approx 10W each. Mine can deliver approx 160W max. Bought on DX.com.


Vidar

[burnit0017]

https://youtu.be/uWsDc0oMrmI

proceeding to fabricate  Milkovic 2 stage oscillator  configuration