Powered Rail

Understanding powered rail requires examining multiple perspectives and considerations. What's the difference between a power rail and a signal line?. 8 One way to look at it is that a power rail optimises for delivering current (and sometimes high voltage), while a signal optimises for delivering high frequency (since the higher frequencies a wire can carry faithfully, the more information it can convey). Obviously they are interlinked, but these are the designer's primary goals. Equally important, what happens when an op amp misses one of the power rails?.

Additionally, essentially, the op-amps power rails will be floating, but likely pulled towards ground (or the opposite supply rail) by all of the devices connected across those same power rails. General purpose diode between 2 power rails. I am looking at a schematic where there is a general purpose diode connected between the positive side of a 5V DC rail to the positive side of a 12 V DC rail. The circuit is powered by a power supply that provides 12 & 5 V DC and these two input voltages are connected to a choke.

Why is a railway's third line or overhead line DC and not AC?. A third rail is much closer to the track-side telephone wires as well making things worse. As an example, when the UK's east coast mainline was electrified (overhead), engineers reported that telephony problems were occurring on lengths of cable about 1500m to 1700m (1 mile) or greater.

What types of power rail are there in an integrated circuit?. This perspective suggests that, intuition tells me there must be at least two types of rail, one providing power and another taking it away. But I don't understand how these rails feed power through CMOS devices or which rail is used to power which CMOS device. What are the types of power rail, and how do they get the circuit to perform computational work? Protection diodes for Arduino pin passing current to +5V rail when ....

When the 5V rail on the far side of D3 isn't powered at all, but the +/- 10V is still applied at "In", the diode at D3 seems to be forward biased at all times. It seems to be allowing enough current to pass to at least light up the "on" LEDs of the Arduino, whether or not it's actually booting. Optimal setup for ±15V dual rail power supply from USB-C. I have a decent +15V power supply design from USB-C, however I also need a low noise stable -15V supply. What approach would be optimal to convert +15V to -15V, or +16V to -16V to a -15V LDO?

diode clamp - Clamping to rails of an unpowered circuit? Even if your circuit is powered, because you are using a non-synchronous buck regulator (or a standard linear regulator for instance) it won't prevent the rail voltage rising above where it should be unless your circuit current consumption and the 47 kΩ form enough of a potential divider to restrict this problem. How to add 30 ms delay after 3.3 VDC rail is ON?. Another key aspect involves, 0 What's the simplest method to add a precision 40 ms delay to a 3.3 V rail? 22/07/2024 update: Thanks all who contributed.

For prototyping, this is what I'll have: Device is TPS3808G33. At startup, datasheet shows RESET line is asserted (eg at 0V). After delay, RESET line goes high then turns Q2 on to provide 3.3VDC to load B. discharge power rail with MOSFET - Electrical Engineering Stack Exchange.