batteries - Using capacitors as a battery back-up - Electrical ...
Apr 6, 2022 · Fuses F1 and F2 are important. F1 protects the capacitor bank from destructive discharge (a.k.a. a big bang) should the DC link become shorted. F2 protects RLY1 and the associated wiring, since it wouldn't be rated for the full output current of 10-15A. The unsafe voltage on C2 is indicated in an energy-saving fashion by two indicators: X1 and X2.
STM32 GPIO Speed - Electrical Engineering Stack Exchange
Feb 25, 2019 · Most any very fast CPU or MPU have bus or GPIO pin speeds that require 10 ohm to 27 ohm resistors in series at the endpoint of the trace to prevent ringing and adjacent trace cross talk.
How to capture, save, and rebroadcast an infrared signal?
Apr 13, 2017 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.
High voltage capacitor discharge tool - Electrical Engineering …
Aug 23, 2021 · Just remember, shorting a large capacitor unleashes a lot of power and give off sparks and huge bang. PS: i was reluctant to present this as a answer as opposed to a comment because i dont want a quick browser to think this is the way to go. Again, be very careful!
microwave - How dangerous is a magnetron? - Electrical …
Feb 3, 2018 · Some magnetrons use beryllium oxide as the "ceramic" looking insulators inside of the ring magnets on both the "Stem" and the "Antenna" ends.
Why do consumer ovens use thermostats instead of PID + PWM?
Mar 21, 2021 · I've added a big N/C relay in series to the heater/thermostat circuit of my kitchen oven (don't tell the warranty people, and I didn't tell my wife until she caught me using it one day). With nothing connected to it, it just looks and behaves like a normal domestic oven. It cooks fine, and has a sawtooth temperature swing of 10 to 15°C.
arm - stm32F103C8xx big or small endian? - Electrical Engineering …
Aug 3, 2015 · If it reads 0 it's a little-endian memory, if it's 1 it uses big-endian. If you are hitting performance problems because of the byte swapping, you might be able to get around those with the use of REV, REV16 and REVSH assembler instructions (don't know if your compiler does this by itself already).
Why choose delta over star connection for a 3 phase motor with a …
Jan 29, 2017 · For a given motor, the fundamental difference between the star and delta connections is that the rated voltage for the star connection is 1.731 X the rated voltage for the delta connection.
EEPROM is a "Read Only Memory," so why can I write to it?
Jul 1, 2016 · \$\begingroup\$ the actual answer is extremely simple: you can program it, but you can't/shouldn't write to it. Like Nick said, both terms here are contextual; "programming" usually means a single cycle of sequential writes, aimed at configuring the chip to do what it's intended to do, usually at very low speed - with regards to Harvard architecture, you won't be able to write …
battery charging - Do I need to fuse batteries in parallel ...
Aug 28, 2018 · If you have never seen one of the big T-series 400amp fuses go bang! you have likely saved pair of underwear. Fuses blow by melting metal, producing liquid metal which can be ejected to land on some other connections causing another fuse to blow.