48 vdc to 24vdc converter

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You've selected:. DIN Rail Mount. Shop Now. Encapsulated PSE Series. Company Information. Sign Up. Active 1 year, 8 months ago. Viewed times. However, I cannot tell exactly how it was wired. Also, at some point in the future I may want to power other devices from this tap, so I'd rather use regulators or transformers. Too much waste heat from burning off an excess 24V.

Doesnt matter what the linear regulator datasheet says about current; those are optimistic numbers. Transformers only work on AC. Resistor are never the way to go. Required current is missing. That makes sense, thank you. There was definitely a lot of waste heat in the original design, which is why I jumpered the resistors from the PCB.

At least if the new solution produces that much heat, it won't be burning the board. Show 7 more comments. Active Oldest Votes. Q1 could also be a Darlington pair simulate this circuit — Schematic created using CircuitLab The same circuit, flipped with a PNP power transistor would be used for the negative supply, and resistors could be added in the collector to burn off some of the heat.

Spehro Pefhany Spehro Pefhany k 12 12 gold badges silver badges bronze badges. I am also building a separate power supply for the preamp, which will definitely be easier. But it would still be nice to be able to use the power amp's rails when using both units together, to avoid the inconvenience of carrying a separate power supply.

Current is around 0. I have been looking for DC-DC converters, but that seems to be a broad class of components. Do you mean something like a buck converter? This one looks like it might be close to what I need, at least for the positive rail.

Find a DC-DC converter module where it is already done for you. I'd definitely rather buy than build. Back Variable Frequency Drives. Back AC Servo Drives. Back Transformers. Back Isolation Transformers. Back AC Reactors. Back Automatic Transfer Switches Contactors. Back DC Contactors. Back Momentary Push Button. Back Oil Pressure Switch. Back Ultrasonic Distance Sensor. Back Magnetostrictive Sensor.

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