(11-11-2012, 05:58 PM)Skywave Wrote: It covers the basics, but I was confused (at first) by his use of electron flow as opposed to conventional current flow. He also stated the voltages across the two capacitors as "200-v.", but failed to specify, in numerical terms, the secondary voltage of the transformer. Finally, whenever I have seen (and used) that voltage doubler cct., I have always seen (and installed) a reservoir cap. across the load (in addition to the two caps. that are integral to the voltage-double operation). That cap. did not feature in that lecture.
Al.
He said that in the first instance that the capacitor charged up to the peak voltage of the transformer and the voltage across that capacitor when fully charged was 200 volts.
I don't think the lecture was supposed to be an exercise in voltage doubler design theory but rather an explanation of how the voltage doubler worked, to that end I think he did a good job, reminds me of our tutor when I did my City & Guilds, concise and to the point with no distractions.
Lawrence.
