Yonrak

@Yonrak@feddit.uk

• ⁨Comment⁩ on ⁨In China, It’s Already Cheaper to Buy EVs Than Gasoline Cars⁩ ⁨⁨1⁩ ⁨year⁩ ago⁩:

  I just got back from a business trip to China also. The high proportion of EVs, particularly in the southern cities like Guangzhou and Shenzhen really stood out to me, and many of them (particularly from BYD) looked really, really nice. They seemed less prominent in the more northern part of the country (e.g. Shenyang, Beijing), but even there I’d say they’re more common than in the UK.

  It was a real eye opener

• ⁨Comment⁩ on ⁨How to improve my battery measurement circuit?⁩ ⁨⁨1⁩ ⁨year⁩ ago⁩:

  Not sure I understand this point. Which resistor would you replace with a diode?

  Sorry, I think I was talking nonesense (doing this in my head and just woke up 😅).

  Not sure it’ll work with just a P-FET actually. You’ll likely need to control the PFET with a NFET, otherwise you still end up with too high a voltage on your control pin when the FET is off due to the gate pullup (unless you can use a fet with a very high Vgs Threshold).

  The above comment about diodes was to protect the microcontroller pin, but you end up not being able to control the FET doing it that way.

• ⁨Comment⁩ on ⁨How to improve my battery measurement circuit?⁩ ⁨⁨1⁩ ⁨year⁩ ago⁩:

  Could you do similar to diagram 2, but instead of an N-FET use a P-FET between the battery and first resistor in the potential divider? Add a gate pull up to source, have the micro pull the gate down to take a measurement. The micro will see 0V or divided battery voltage.