bigclive
patreon
A slightly frustrating teardown
🕑 Added 2024-04-18 16:48:22 +0000 UTCThere's so much weird circuitry in this unit. Notably the strange dual base transistor drive, possibly for feedback of an overcurrent situation on the sensor. Initially I thought it was to detect when it had come up to temperature by a PTC effect, but that would have the opposite result. Unless the heater film has an NTC characteristic.
The rest of the circuitry seems to allude to using digital trickery to get an analogue reading. As if they used a digital-only chip.
Comments
Rupert Kent
What an odd thing. I wonder why it disappeared so quickly. I bet it detected it's own "farts" though, I mean how could it not...?
Evan Grove
One of the weirder blobs I think I've seen on this channel.
