2020年10月27日 · It's an odd arrangement of astable multivibrator. As Q2 turns on, Q1 turns off. That causes a "flyback" effect in the inductor and passes current through the LED (at a higher …

2016年10月11日 · Hello, I tried to modify my .tran command so it would simulate more quickly a more advanced circuit. Using .tran 0 2m 1u 100n uic on a small design and got...

2024年2月7日 · In the screenshot attached you can see with PWM off/ 0V I can not turn off the driver circuit. Instead, I have > 3 V on the feedback path and > 6 V on the output of the voltage …

2017年11月9日 · Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets.

2017年11月26日 · The weird character is a DC symbol so the output is 29 VDC and capable of 12 Watts. If you can find a 30 Volt 500MA wall wort it should work fine. That assumes the power …

2020年10月4日 · I ended up with a SSOP-28 version. It's an I2C backpack for a character LCD - weird how I now find SOIC too big!!!! I've now changed to the 16F18854 which meats my …

2020年10月9日 · I cannot imagine what kind of a weird solution we might be solving - I think we need to hear the core problem and offer better solutions. The idea is simple to be able to …

2021年7月24日 · Driers are weird. Older dryers were actually wired wrong and were 3-wire. Newer dryers use a 4-wire plug (L1, L2, N and Ground). Electric dryers typically use 240 and …

2016年4月23日 · Cost, unfortunately, tends to do weird things. I know your asking for Start/Stop right now, but there could be other functions that are needed. e.g. Oil level low prevents start …

2010年7月18日 · Weird! I swear, that thing looks like somebody custom grafted a piece of power supply junk PCB and components onto the rest of the circuit; it really looks half-a&&ed, for …