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.
What happens when a ceramic bypass or decoupling capacitor …
Mar 8, 2022 · Too much voltage can cause the dielectric (insulating) layers to break through and become short circuits. Too much voltage can also cause the capacitor to flex, resulting in a stress crack. Then you get the same result as above. The capacitor becomes more like a resistor, or shorts out entirely - bang or burn. Neither failure mode is usually a ...
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.
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.
How to config Channel A/B of FTDI FT4232H to JTAG
Mar 31, 2024 · So the FT4232H does not know what you are planning to talk but gives you the option to go into the fancy-bit-bang mode by a command. If you use FTCJTAG.DLL to open the device handle, it will take care of this step. The EEPROM allows you to make the channels only visible for D2XX by changing the driver from VCP to D2XX.
Do capacitors automatically release their energy over time?
A big capacitor may hold a charge for some time, but I don't think you will ever get much further than 1 day in ideal circumstances. You should watch out if you have turned on the PC just 'a moment ago', but if you let it unplugged for a couple of hours and it will be fine.
Why is the Clock Signal referred to as SCK instead of CLK in SPI?
Jun 11, 2024 · The name serial clock was likely used for clock of bit serial communications that already existed years before someone (Motorola) decided to make a MCU (a few 6805 models in 1983) equipped with a configurable built-in peripheral (called SPI) that simply accelerates the bit serial transfer process in hardware instead of being forced to bit-bang it in software.
Is it okay to use a power supply that provides slightly more …
The weird symbol indicates its a DC output. This laptop adapter supplies an output voltage of 19 V and a maximum output current of 3.42 A, well above your original adapter's 2A maximum.
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 to such memory ...