Does anyone still make brute-force linear supplies? I.e. just a rectifier with a choke output filter and an output that's proportional to the input line voltage? 24V, 10 - 15A. Inquiring minds want to know. Thanks. -- My liberal friends think I'm a conservative kook. My conservative friends think I'm a liberal kook. Why am I not happy that they have found common ground? Tim Wescott, Communications, Control, Circuits & Software

Mouser carries a few from International Power; look at the bottom of . Looks like it has a soup-can capacitor with a bleeder resistor, not a choke. Mouser 597-IP500U24 is 29.2 V no load, 24.6 V @ 20 A, $260 quantity 1. Googling finds similar parts from Powervolt, . BVU-24FU20 is 24.6 V @ 20 A (the next smaller one is 7.5 A). Pricing appears to be "contact factory". I don't know if either of these are any good or not, just that they exist. Both of them seem to have three taps for each input voltage (-10%, nominal, +10%) so you can adjust the output a little at install time. Standard disclaimers apply; I don't get money or other consideration from any companies mentioned. Matt Roberds

You may want to look at Acme Electric. Kevin Gallimore

message -- in 0.637. rectifier a Si, Amigo, but it is still force brute. ?-)

Brute-force linear supply manufacturer?

May 09, 2013 28 Replies

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Phil Hobbs 13 years ago

No, Schroedinger's equation and its low-energy relatives are all linear operators. ;)

Cheers

Phil Hobbs

Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC Optics, Electro-optics, Photonics, Analog Electronics 160 North State Road #203 Briarcliff Manor NY 10510 USA +1 845 480 2058 hobbs at electrooptical dot net http://electrooptical.net

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Cydrome Leader 13 years ago

good luck.

I last saw these advertised as something like a "relay power supply", but all that turns up these days are DIN mounted switchers.

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Michael A. Terrell 13 years ago

Till you trip over his dead cat? ;-)

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tm 13 years ago

Don't forget the digital on-off switch.

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axolotl 13 years ago

You may want to look at Acme Electric.

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Kevin Gallimore

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axolotl 13 years ago

Or these guys.

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Kevin Gallimore

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Ralph Barone 13 years ago

If your rectifier is a 5AR4, then the choke input topology has certain advantages.

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josephkk 13 years ago

message

0.637.

rectifier

Si, Amigo, but it is still force brute.

?-)

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Martin Riddle 13 years ago

I just came across this No choke, but raw rectified cap filtered.

Cheers

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