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1answer
34 views

Automatic transfer switch VS Using a Reversing Contactor with Circuit Protection

We have a an industrial control system that utilizes a 480VAC 3 phase 10 Amp service. For redundancy reasons, we wanted to add an automatic transfer switch to the system to switch between two ...
0
votes
2answers
45 views

Failover Management from AC to DC and DC to DC

I'm working on a project that has a high availability requirement. As such, I must maintain a power supply output of 12vdc ~1a (ideally 13.5vdc ~35a). The 1a option will sustain the core equipment, ...
1
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3answers
101 views

Triple Modular Redundancy w/ Majority Voting when a microcontroller fails

In a simple majority voting system, the majority input values will be the output, as shown below. However, how does one deal with scenarios where one or two microcontroller fails? Also, how do we ...
0
votes
1answer
19 views

redundancy checks and protection on monolithic and MMICs

I am using the ISL8026A chip for voltage regulation from 5 to 3.3V. The datasheet is - datasheet. Now, this is merely an example circuit. Now, I would like to design a power supply for a hi ...
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0answers
95 views

How can I add redundancy to the flyback diode protection across an inductive load?

Dear StackExchange users, I want to add redundancy to a flyback diode system that is protecting an N channel MOSFET from flyback of an inductive load but I don't know how to accomplish this! I am ...
2
votes
0answers
65 views

Redundancy in power supply [closed]

How is redundancy of power supply from converters done in satellites? can anyone explain with complete details.Is it possible to get the actual design from power system of any mini-satellites ? Is the ...
1
vote
2answers
154 views

How to do redundancy for a DC/DC converter? So that if one of the converters fails the other gets switched on

I have a DC/DC converter that gives 3.3 V output.In our system it is the most important part.So we need a redundancy for this.So that if one of the converter fails the other should automatically get ...
9
votes
1answer
282 views

Yields in DRAM and other Massively Redundant Processes

I'm right now combing the electrical engineering literature on the sorts of strategies employed to reliably produce highly complex but also extremely fragile systems such as DRAM, where you have an ...
1
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1answer
129 views

using double powersupplies

I have 2 computers (home PC's). Both are connected to the internet through a router/switch. The router is always powered, regardless when one (or both PC's) are going standby. Idea is, to power the ...
2
votes
1answer
344 views

How to create a triple redundant clock tree in FPGA manually?

I am exploring a range of techniques to implement TMR clock trees as part of a global TMR design (all resources including i/o pins, clock trees, reset trees, logic and registers are implemented with ...
1
vote
2answers
4k views

Using a relay to switch between 230VAC inputs

I have two mains power inputs (in case one fails, the other is likely to still work), but the device only has one power supply, so I decided to use a relay to switch between the inputs (the device ...
18
votes
3answers
3k views

Dual-SIM phone, do they use 2 GSM modules ? Anyone has high level schematic?

As an slight extension of my project, I am trying to see if I can improve connectivity resilence by using a dual-SIM approach. Dual-SIM phones (or Tri-SIM, quad-SIM phones) are quite popular in many ...
4
votes
2answers
217 views

Operation without power: Passing analog video

Okay, the title sounds odd, I'll admit. I need my project to work without power. That is, a complete power failure may happen, and no additional power (such as a battery or supercap) is available ...