More DC volts out than in + pickup tip

4x relay coils and 4x 1N4148 diode FWBR’s have been added to my recent pulse motor project. See last couple of uploads for progress reports. The motor has a 3.6V house phone Ni-CD pack as power source and outputs 5.65V. Milliamps are low though…it needs approx 63mA to run and output is around 14mA. Before changing things around and experimenting with AC to DC conversion methods, I thought i’d grab this video. Of note perhaps, is the 90 degree mounted relay coil on top of one of the power coils. This arrangement doesn’t interact with the rotor magnets and so doesn’t create a slow down, but produces approx 1.6V DC after the bridge rectifier stage. In the video, the LED is across the AC side, to show the power pickup method working. All else on the motor is the same. C3200 transistor, U18 Hall sensor, 8x alternating polarity neodymium magnets, 3x multi-strand series connected powering coils.

You may also like...