Three ways to write fennel beans

PowerAnts

Three ways to write fennel beans [Copy link]

Three ways to write fennel beans, high-side DC current detection switch solution 1, TI's 169 and 5050, cost 10 yuan (excluding power mosfet, the same below) solution 2, use rail-to-rail op to replace 169, cost 6 yuan solution 3, with 3 1.2 LM393 as the core, cost 1.2 yuan, to achieve 70V charge pump, high-side three-stage response current detection, high-side DC switch, estimated accuracy 5%, enough

PowerAnts

Plan 1: lack of space but not money Plan 3: lack of money but not space, just squeeze in 2cm2

dfwisdom

Is it a lot? Not much!

ddllxxrr

Not much! Not much! But I don’t understand what this Shangdaren Kong Yiji’s Huixiangdou has to do with? ? ? ?

PowerAnts

dfwisdom posted on 2019-7-26 08:27 Is it a lot? Not much!

Point-and-shoot cameras, mobile phones, and SLR cameras can all take pictures. It's OK if there are representatives.

PowerAnts

ddllxxrr posted on 2019-7-26 09:09 Not much! Not much! But I don’t understand what this Shangdaren Kong Yiji’s Huixiangdou has to do with? ? ? ?

Look at the last line on the top of the building

yet

The OP knows himself very well... He loves to eat fennel beans. He is the only person who drinks while standing and wearing a long gown... He hangs out in many electronic forums, has worked for many electronic companies, has fired many bosses by shouting, and is the only Chinese student at Faraday...

led2015

I suddenly saw this and found that there are still many humorous people in technology. For example, the person who invented the following.

Garbage sorting lady: What kind of garbage are you?

Fortune teller: What are you fortune telling?

Canteen Auntie: Do you want food?