Dota 2 dc hook module

Can i use 2 DC power supplies together?

GARYN

SgtWookie

bertus

@ alberto:
The solution you give is partly true.
When the voltage differ a little one power supply ( with the highest voltage ) will deliver more current than the other.
This unbalance will probably burn one of the powersupplies and then the other.

Damo666

GARYN

Wendy

Yes, you can split the load between two power supplies without any issue, just be sure to track how many amps each is providing. This is routinely done in a house for it’s line currents. Think a breaker or fuse for each set of controls.

Alberto, the steering diodes help, but one supply is still going to be loaded more than the other, so one is going to be more loaded and stressed than the other. Guess which one gives up the ghost first? The OP didn’t mention power supply specs, with modern power supplies with good protections are less likely to fail catastrophically than a simple unit.

Part of the way to succeed in paralleling power supplies is to tweak them very close to each other, within a mv or so. Since individual power supplies will react slightly different there will still be an imbalance. It is better just to split the loads, the consistancy and reliability goes up.

I recently bought two 24VDC at 6.5A that I’m thinking of putting in series for 48V, for a variable bench power supply. I’m still thinking about the kind of regulator I want to use for something like this.

baberb1984

For paralleling two DC power supplies for 2x current:
Yeah I agree, reliability is just better if you separate the two power supplies into two separate circuits, and just try to balance the loads across the two circuits. Since I usually ground the negative DC voltage, and/or directly connect the DC common between the two supplies, there is no problem with feeding a load with the + from one DC supply with the – from the other supply

For series connection of DC power supplies for 2x voltage:
Putting supplies in series for double the voltage, you want a reverse-biased diode across the + and – for each supply (cathode to +, anode to – of the same supply). You do this in case they don’t come on at the same time, or if one is off, the diode blocks the other supply from frying it with reverse voltage. It’s not a big deal, just a bit of extra precaution; The diodes are not normally conducting, ever, and would only be conducting if there is a problem – thus routing current around the supply that is being protected.

You can do this for any number of DC supplies, theoretically. Just size each diode for the voltage of all but the power supply it’s biasing, and the current of the complete system. Remember the same current has to go through all power supplies. So if you have 10 10A 24v DC power supplies in series for a total of 10A @ 240vDC (wow), you’ll want 10 diodes that can withstand at least 216vDC reverse voltage and 10A forward current.