Mike Edmiston wrote:
| Also, I am not keeping up on electronics as much as I would like, but=
| my
| old fashioned self is inclined to reserve the wording "switching supp=
| ly"
| to units that achieve a lower DC voltage from a higher DC voltage by
| varying the duty cycle of the output transistor. Has the wording tak=
| en
| on broader meaning?
Yes, there are "voltage boosting" switching arrangements. In one method,
eg., the charged capacitor and "singing" inductor are discharged in
additive series through the load. Google can probably amplify.
I agree that the singing flash units are probably using the
oscillator/transformer method which you described.