[SI-LIST] Re: load sharing in DC DC Controllers
- From: "Rose, Michael" <mrose@xxxxxxxxxxxxxxxxx>
- To: "joe.jose.nk@xxxxxxxxx" <joe.jose.nk@xxxxxxxxx>, "si-list@xxxxxxxxxxxxx" <si-list@xxxxxxxxxxxxx>
- Date: Tue, 4 Sep 2012 17:28:44 +0000
Joe,
Generally, load sharing is accomplished by either a droop method where the
outputs will share current based on the common output voltage; or by active
control (typically using the remote sense leads); or through active load share
controllers like the Linear Tech LT4350 which use series MOSFETs to regulate
the individual currents. Multiple regulators are isolated to a common bus by
diodes or active diode controllers.
Short circuit protection is regulator specific. Some will release smoke and
better regulators will have fast (cycle-by-cycle) current limiting and perhaps
fold-back.
Mike
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of joe jose
Sent: Tuesday, September 04, 2012 1:06 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] load sharing in DC DC Controllers
Hi All,
I would like to know the fundamentals of load sharing happens with DC DC
controllers. My question is like
I have 2 DC DC controller of same O/P and I/P condition.
1. Is it possible for me to short the O/P of all the two regulators?
2. How the current sharing is happening between the devices
3. As per my assumption, it is not recommend to parallel the device.
4. Can anybody give me the details of the current flow between all these
regulators.
Thanks,
Joe
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