Of course, if the IR emitter in the proximity sensor were running ... very high gain, the circuit becomes prone to oscillating due to the inherent capacitance of the photodiode, so there’s ...
It uses a very small photodiode ... The circuit only draws about 1mA, but [Alan] says he can probably get that down to a few micoAmps. A perfect radiation sensor for lightweight and low power ...
Interesting Engineering on MSN19d
35% better infrared sensor to boost VR headsets, self-driving cars and more
Most infrared photodiodes are made of InGaAs, a material that is neither CMOS compatible nor good for the environment. Here’s an alternative.
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