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About heater regulated supply
About heater regulated supply
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Old 11th March 2019, 11:21 AM   #1
victordascalescu54 is offline victordascalescu54  Romania
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Default About heater regulated supply

Hi,
I wonder if someone have experienced a ULN-HC78A as regulation element in a heater PSU.
ULN-HC78A Ultra Low Noise Positive Regulator 2.5V~30V Output High Current Type | eBay
Does it perform as it costs???
Thanks in advance.
Victor

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Old 11th March 2019, 11:35 AM   #2
Bas Horneman is offline Bas Horneman  Netherlands
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I haven't but for a heater element it would be absolute overkill.

For the filament of a tube it would not be suitable either....

Here is something that is suitable for filaments.
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Old 11th March 2019, 11:39 AM   #3
victordascalescu54 is offline victordascalescu54  Romania
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Sorry but I see nothing....
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Old 11th March 2019, 11:43 AM   #4
kokoriantz is offline kokoriantz  Lebanon
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The output voltage is selectable but no 6.3v . Why you need so low noise for heaters ?
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Old 11th March 2019, 11:50 AM   #5
Bas Horneman is offline Bas Horneman  Netherlands
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Rod Coleman DHT Filament Regulator
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Old 11th March 2019, 12:37 PM   #6
victordascalescu54 is offline victordascalescu54  Romania
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Quote:
Originally Posted by kokoriantz View Post
The output voltage is selectable but no 6.3v . Why you need so low noise for heaters ?
It was my first answer to them, they told me that I can order what ever I need, 6,3 or 12,6 V and they shall fix it.
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Old 11th March 2019, 12:46 PM   #7
Bas Horneman is offline Bas Horneman  Netherlands
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Ok. So you do want them for the heater. I would like to confirm then that you would be throwing money down the drain. Since it won't be audible compared to a simple regulator.
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Old 11th March 2019, 12:51 PM   #8
victordascalescu54 is offline victordascalescu54  Romania
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Thanks for your oppinion, I'll keep it in mind, be shure I dont want to spend money for nothing. I was just asking.
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Old 11th March 2019, 12:54 PM   #9
Bas Horneman is offline Bas Horneman  Netherlands
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Quote:
I was just asking.
I'm sorry if I came across as combative...just wanted to make sure...since I wasn't sure you needed it for heater or filament. Good luck with your project.
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Old 11th March 2019, 12:58 PM   #10
victordascalescu54 is offline victordascalescu54  Romania
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Thanks
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