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24 items tagged "supply"
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walton multiplier [+],
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voltage regulator [+],
voltage and amperage [+],
voltage ac [+],
voltage [+],
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tiny power [+],
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swapping coins [+],
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scott [+],
rotta [+],
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programmable power supply [+],
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power strip [+],
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pin chip [+],
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obsolete technology [+],
noise [+],
monitor [+],
mode power supply [+],
mode [+],
milling machine [+],
mike [+],
mettle [+],
metal case [+],
lithium batteries [+],
linear voltage [+],
linear regulators [+],
laptop power [+],
jeremy [+],
ian lee [+],
hole components [+],
high voltage power supply [+],
high voltage power [+],
group management [+],
felipe la [+],
erich [+],
dummy load [+],
digital calipers [+],
digital [+],
deb [+],
dc dc converter [+],
dc dc [+],
david cook [+],
dave [+],
dangerous thing [+],
d. the [+],
consumption [+],
cockroft walton [+],
cheapies [+],
charger [+],
chain relationship [+],
cell phone charger [+],
car [+],
cameras [+],
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breadboard [+],
boost converter [+],
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bipolar [+],
bench tools [+],
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atx psu [+],
atx [+],
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11:01
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Hack a Day
This DC-DC Bipolar PSU was developed for use with a guitar effects pedal. [Obsolete Technology] needed to source both positive and negative 15V. This is pretty easy to do if you’re converting from mains, but he wanted a solution that could work with a lower-voltage AC/DC wall wort or even from batteries. The part that [...]
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17:00
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SecuriTeam
This allows remote authenticated users to affect confidentiality and integrity via unknown vectors related to Supply Chain Relationship Management.
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17:00
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SecuriTeam
This allows remote attackers to affect confidentiality via unknown vectors related to User Group Management.
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4:00
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Hack a Day
For a power hungry project the supply is sometimes a pretty big unknown. Whether stapling together a few different power supplies to meet a current requirement, or designing a system from the ground up: a big power supply can be quite a dangerous thing. It helps to have some kind of a dummy load to [...]
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14:01
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Hack a Day
Your bench supply doesn’t need to look sad just because you’re using an ATX power supply instead of a commercial product. Follow [Ian Lee's] example and you could have beautiful wooden enclosures for the tools in your own shop. The woodworking skills used here aren’t all that advanced, but you need to have a knack [...]
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15:01
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Hack a Day
Back in his college days [Print_Screen] grew tired of always building a power supply on his breadboard. To make prototyping quicker he came up with the bench supply that is build into a power strip. This one is using linear regulators for power, and create much less noise on the lines than a supply made [...]
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12:01
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Hack a Day
[FozzTexx] has been using a bench supply he made from an AT PSU for years. He put a lot of work into that one, removing unnecessary wires, mounting banana plug jacks on the metal case, and adding an on/off switch and labels. But if it ever dies on him it will be a major pain to do [...]
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14:01
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Hack a Day
[Mike] just purchased this Atten APS3005S bench power supply for around $80. It does the job, but boy is it noisy! We were pretty surprised to hear it fire up in the video after the break. To make matters worse, the noise is persistent since the fan never shuts off. Having worked with other bench [...]
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10:01
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Hack a Day
If you’ve already dipped your toes into high-voltage power supply pool you may be thirsty for a bit more knowledge. Here’s a neat illustration of how to build a voltage multiplier that can output a positive or negative supply. It is based on a design known as the Cockroft-Walton Multiplier. It’s the add-on housed in [...]
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8:12
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Hack a Day
For an upcoming road trip, [Patrick] needed a small variable power supply. Instead of lugging around a bench supply, [Patrick] did the sensible thing and reverse engineered a cell phone charger to fit his requirements. After cracking open an old Kyocera car charger, [Patrick] found a small PCB with completely labeled, all through-hole components – [...]
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15:01
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Hack a Day
[Scott's] been digging around the back issues of the Internet to find this project. He blew the dust off and sent us a link to an article that traverses the design and build process of a bench power supply. [Guido Socher] does an excellent job of presenting his bench supply project. So many others show [...]
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8:01
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Hack a Day
[Guido Socher] built himself a great little bench power supply that’s able to put out 30 Volts at 2 Amps. Instead of taking the easy way out by putting a few taps on an ATX power supply, this project was built around a generic 24 Volt laptop power brick. An ATmega8 generates a PWM signal [...]
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5:01
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Hack a Day
[Punish3r] wanted to have power for prototyping on the go. What he came up with is this little thing above. Inside you’ll find common components that let the unit provide 10 amp hours of current with a 12V 500mA output. The storage capacity is provided by a dozen Lithium batteries. These 3.7V cheapies are wired in [...]
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11:00
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Hack a Day
Concerned with your project’s power consumption but don’t want to constantly leave an ammeter wired in series with your power supply? [Rajendra] feels your pain and has recently documented his solution to the problem: a variable-output bench top power supply that clearly displays load current consumption among other things! Everything is wired up in a [...]
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10:50
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Hack a Day
[Erich] spotted a broken DVD recorder at a local amateur radio meeting and decided to see if he could restore it to working order. While he was fortunate enough that someone labeled it as having a bad power supply, things aren’t always that easy. He gives a broad explanation as to how switched mode power [...]
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8:56
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Hack a Day
It is easy to rely on the ratings marked on different tools, whether it is a power supply, scale, or speedometer. However calibration is essential for any part that is relied upon either professionally or for a hobby. [Jeremy] wanted to see if his Lomography camera shutter really was only open for 1/100ths of a second when [...]
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6:18
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Hack a Day
Powering your gadgets generally seems like a necessary evil. To help with this [Felipe La Rotta] made a really nice bench power supply using a PC power supply and a LM317 adjustable voltage regulator. PC power supplies are an example of a switched power supply(more on that later). The LM317 is a type of linear voltage regulator [...]
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7:18
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Hack a Day
This is a bench power supply with adjustable voltage and current limiting. [Sylvain's] creation can regulate 0-25 volts while sourcing 0-5 amps. Current limiting is a nice feature as it will allow you to test your prototypes to ensure the power regulator you choose will not be over or underpowered. This supply is really a [...]
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8:58
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Hack a Day
This programmable power supply is the perfect addition to your bench tools. [Debraj Deb], who previously built a whole house power monitor, designed this build around a PIC 18F4520 microcontroller. The desired voltage is set with an attached keypad, resulting in a digital output on the 8-bits of port D. The port connects to another [...]
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8:00
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Hack a Day
The EEVblog is on a roll with interesting topics lately. In the latest episode [Dave] takes us through the nitty-gritty of switch mode power supply design. Using DC-DC converter IC’s in not especially hard. The datasheets tend to have fairly good usage schematics but there’s always a bit of heartache that goes into figuring out [...]
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10:00
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Hack a Day
Here’s an interesting idea: replace a disposable coin cell battery with a capacitor in order to filter the noise from an external power supply. [David Cook] is taking advantage of the falling costs of digital calipers. He’s mounted one on his milling machine but noticed that with an external power supply the readings would sometimes [...]
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4:17
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Hack a Day
[Manekinen] built a power supply monitor based around an AVR ATtiny13. Voltage and amperage are displayed on a 16×2 LCD character display (we’re not sure what the third number is… samples per second?). This is no small feat considering that the tiny13 is an 8-pin chip. He makes it happen by using the pins for [...]
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