Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Does it the same meaning when the differential voltage is 24V? it depend on the way we choose the common point, and which case we use dual power supply?
I having a circuit is equip with isolate dc dc 24v to 5v to power my embedded circuit. The distance from power supply to my circuit is 50m (out door). What kind of device i should choose for protection: mov, tvs, efuse, gas tube..
This is the first time I work with opto coupler, the did-advantage of this type isolation is life-time. Is there any note to keep in mind to avoid defect? any one has experience?
Hello,
I need dual isolated power supply 12V and 5V. I intend to use dual output power supply +12V -12V. In the -12V I connected inverse polarity and using Dc/DC to make +12V and +5V isolated?
is it possible?
When design RJ45, they having pin for shielding. I look for some design they connect to some of variations:
1. Inductor to GND.
2. resistor 1M // cap 100nF to GND
3. 0hm // cap 100nF to GND
4. 100nF cap only.
5. Connect to GND.
Which connection is correct? and why?
Is it posible for 2 high speed signal using same Gnd? Suppose stack up like this:
Top1
Gnd2
Sig3
Gnd4
Sig5
Gnd6
The case sig3 and sig5? I'm afraid of return current on gnd4 conflict?
In my circuit using just NTC (norelay) to limit irrush current into a toroid transformer, the issue is NTC is too hot 150 degree. Is it OK for long term use? Or I must use a by pass relay.
The rectifier connect to secondary side of the transformer. You know that inrush current by charging capacitor after diode bridge, and I want to limit..them.
- - - Updated - - -
Rating 12Vac x30A. I understand that even we dont need irush current if the fuse able to sustain?
My circuit including toroid transformer from 220V to 12VAC. I need implement irrush current circuit, but I wonder to implement before toroid transformer or after rectifier diode bridge? which is better.
I understand this, as someone answer before we able to design to meet junction temp is 174.9 deg, and the bigger heatsink make the fet top case less thermal (low temperature). So the right anwer I think is here, base on Junction- packaga thermal dispassion we will estimate the top case temp.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
