Voltage Regulators
| Author | Message | ||
| Lee Thompson Unregistered guest |
I've got a handful of 4.8v servos currently powered by a NiCd pack, but would like to run them off my 12v SLA Battery inside my bot. Is there a simple device that will step down the voltage? |
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| Admin (Admin) Board Administrator Username: Admin Post Number: 188 Registered: 10-2004 |
We had a popular item from MFA that would regulate a nominal 12V down to 4.5V but that has been recently discontinued by the manufacturer. The only other option we currently have is a variable regulator see here which should meet your requirements. |
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| Peter Mcquillan Unregistered guest |
Hi, I have a VW camper van and bought a neon String light. Not a string of lights, but a sort of transparent wire that eluminates along it's entire length. This is driven by a very small circuit board 6X6 mm? and then into a small transformer. My voltage regulator failed and threw something like 20 volts through my wiring, but never blew any fuses but cooked the tiny circuit board. Is there one of your voltage regulators that can protect this little driver box? I see that it was purely a volt problem. Make sense? I need a tiny regulator so it doesn't get more than 12 volts in the event of another van regulator failure. All the best, Mac |
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| Admin (Admin) Board Administrator Username: Admin Post Number: 915 Registered: 10-2004 |
Mac, You did not mention the power consumption of the lights. We have a regulator 1062-004 (005 is the panel mount version) that may well do the job. Whilst the spec quotes a maximum input voltage of 15V, we believe that is the maximum for 3A output. We also stock discrete voltage regulator chips to build your own regulating power supply. If you can confirm your maximum load, we will check on the suitability of 1062-004/5. |
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| Mitchell Louis Unregistered guest |
Does Item Switching 5V Regulator 1A - Part No: 1062-020 allow 12v in and the regulate down to 5v out? If yes, do I just use the center ground for BOTH the 12v in and 5v OUT grounds? Thanks! |
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| Admin (Admin) Board Administrator Username: Admin Post Number: 980 Registered: 10-2004 |
Mitchell, Under the product description is a button for opening the data sheet for this product. Input voltage is a maximum of 30V so 12V is fine and of course gives 5V out. Minimum input voltage is 6.3V. The centre pin is a common ground connection for both the input and output voltages. |
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| Brendan v/d Bosch Unregistered guest |
Hi, I am looking for a good quality 5V Switching Regulator to power an AV Transmitter coupled to a 12v camera. How does the product Switching 5V Regulator 1A - Part No: 1062-020 as listed on your website fair with reference to video interference? i.e. Does it have good filtering? The power source is a 3S Lipo battery. many thanks |
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| Admin (Admin) Board Administrator Username: Admin Post Number: 995 Registered: 10-2004 |
Brendan, Sorry but we have no data to suggest either way. Considering it is a switching regulator rather than a linear regulator, it would not be unreasonable to expect some high frequency noise. We have not received a negative feedback from users with RC equipment but I would so that for your application there is a risk. |
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| rcf Unregistered guest |
Hi, I would like to power a few Doepfer analogue synth modules from a single battery, if possible. The modules require +/-12V DC, and will require approx 230ma per rail.. Could I use 1 each of the following to get a 12V dual rail output from a single battery? 1 x Negatron dc to dc Converter -12V - Part No: 1062-023 1 x AnyVolt Switching Regulator 0.5A - Part No: 1062-022 Would I be able to use a single Lithium-Ion Battery pack to provide the DC power? If this idea is workable, is it likely to add any noise to the audio outputs of these modules? Thanks for your help. Ralph [email protected] |
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| Admin (Admin) Board Administrator Username: Admin Post Number: 1028 Registered: 10-2004 |
The Negatron requires a minimum voltage of 5V, the AnyVolt needs 2.6V so as long as your battery pack is 2 or 3 cells then that will be fine as far as operating voltage is concerned. As for current rating, the negatron needs 12v in to get 250mA out (see data sheet for details). The nearest voltage you can get is 11.4V so it is border line although a charged up 3 cell pack is likely to just work. These regulators are switching and thus will generate a certain amount of noise but I cannot comment on whether this would pass through into the synth (note output ripple <100mV). If it does, a capacitor or two for smoothing and noise suppression could well help. Nice synth by the way, takes me back to a synth I built in the early 80's which was a Digisound 80 modular analogue synth. |
