

Check out this cool little hack, it’s an open-source motor controller for an electric bike. There’s no pictures of a finished version but can’t wait to see this circuit in action!
n brief the PicOx is a PicAxe 08M based digital Controller that performs an ADC of a Hall-effect throttle and an ADC of a Hall-based current sensor. These two parameters determine the “Mark” value of a 15Khz PWM signal that does the switching to the Output stage. At the end of the project the Controller can sustain 48V @ 75 Amps repeatedly for approx 5 second bursts and is really only limited by the In-Line breaker that cuts the supply voltage, though the entire system’s overall design objective is met reliably at 48V 50Amp operation…
via HackedGadgets
adc, amps, Cool, Cool, digital_controller, DoItYourself!, DoItYourself!, Educational, Educational, electric_bike, Energy, Energy, entire_system, finished_version, Gadgets, Gadgets, Hack, Hack, motor_controller, open_source, output_stage, parameters, Projects, Projects, pwm_signal, supply_voltage, Travel, Travel
adc, amps, Cool, Cool, digital_controller, DoItYourself!, DoItYourself!, Educational, Educational, electric_bike, Energy, Energy, entire_system, finished_version, Gadgets, Gadgets, Hack, Hack, motor_controller, open_source, output_stage, parameters, Projects, Projects, pwm_signal, supply_voltage, Travel, Travel

Well, here’s a cool DIY on using a simple ADC chip into a PC Oscilloscope. Very interesting how you can use a $6 chip as a $300 Machinery…
via make
adc, ad_converter, analog, analog_signal, build, Circuits, Circuits, Cool, Cool, DoItYourself!, DoItYourself!, DoItYourself!, Educational, Educational, 맥스, Hack, Hack, hackers, 제도맥스, 컴파일, make, makezine, Microcontroller, Microcontroller, oscilloscope, Zedomax
adc, ad_converter, analog, analog_signal, build, Circuits, Circuits, Cool, Cool, DoItYourself!, DoItYourself!, DoItYourself!, Educational, Educational, 맥스, Hack, Hack, hackers, 제도맥스, 컴파일, make, makezine, Microcontroller, Microcontroller, oscilloscope, Zedomax