Electronic halogen lamp driver.
Added 2020-09-01 02:32:01 +0000 UTCThese units have been around for a while. They have a few pros and cons.
Pros. They're cheap and lightweight and have other technical uses.
Cons. They emit a lot of RF noise and are prone to going bang - especially the early units.
Comments
Wow that is nasty but the insight is invaluable
Michael Thompson
2020-09-03 16:23:32 +0000 UTCidk, it's not much smaller than a 12V@4A old-school SMPS! Then again, I didn't know such power supplies even existed. This push-pull type designs, are used in cheap 5V usb chargers that are too cheap to even use a controller IC. They are ALL "sucky" and are only to lower costs.
MarkM
2020-09-01 12:02:17 +0000 UTCSo the totality of the ripples on the sinewave... would it work from an inverter? Modified sinewave which cuts on and off❓ full sinewave like those solar mppt inverters⁉️
Cerity
2020-09-01 07:02:28 +0000 UTCIt achieves the great power factor the same way many modern switch mode power supplies do. By initially converting the incoming supply to higher than peak mains voltage as a series of pulses along the full sinewave. The frequency of pulses along the sinewave is genuinely presenting a good power factor.
Big Clive
2020-09-01 06:54:19 +0000 UTCIs the power factor actually that good or is meter just having a problem accurately measuring it?
Lostngone
2020-09-01 05:14:16 +0000 UTC
