Just playing around with a pulse width modulation solar charge controller.
By Julian
Youtuber, shed dweller, solar charge controller aficionado
Good morning all…
Youtuber, shed dweller, solar charge controller aficionado
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I use a crystal earpiece terminated with a couple ov croc clips to do these sort ov examinations. There are all sorts ov variants on the PWM scheme in various controllers. In fact I find this method ov listening to waves so effective, combined with the frequency & duty cycle functions in my multimeter I seldom have the need to actually hook up to the 'scope much ov the time. The crystal earpiece is such a high impedance (and has no DC path) that you can hook it to relatively high voltages without it getting overloaded or blasting your ear. But I always have it out when I first connect it!
I'm surprised to see a brazilian battery in the UK. Is it easily available there?
Very interesting !
I didn't know that's how the Phaser worked, thanks for that.
I'm tipping that CE lable means China Export rather than any certification. Very poor EMI