https://electrical.codidact.com/categories/26/tags/2885.rssNew Posts Tagged 'power-supply' - Electrical EngineeringElectrical Engineering - Codidact2024-02-21T13:54:17Zhttps://electrical.codidact.com/posts/290863Implementing local ground theory on PCB power distributionmohammadsdtmndhttps://electrical.codidact.com/users/580552024-02-18T15:28:39Z2024-02-21T13:54:17Z<p>I've tryed to implement a local ground concept told by Olin Latrop <a href="https://electronics.stackexchange.com/a/15143/152533">here </a>:
He have told:
(What I've perceived)You should not c...https://electrical.codidact.com/posts/290774Why would a standby UPS fail to power devices when there's no power outage?Monica Celliohttps://electrical.codidact.com/users/80462024-02-12T23:21:22Z2024-02-14T09:34:46Z<p>I have an ordinary <a href="https://www.amazon.com/gp/product/B073Q3BSPG/?th=1">consumer-grade standby UPS</a> with, I believe, ample power for the devices connected to it.<sup class="footnote-r...https://electrical.codidact.com/posts/289797derating MLCC ripple current for transient current spikeskellogshttps://electrical.codidact.com/users/603992023-09-24T10:42:31Z2023-10-06T23:47:20Z<p>This graph - MLCC temperature rise vs ripple current RMS & frequency</p>
<p><img alt="Image_alt_text" src="https://electrical.codidact.com/uploads/by7ol4n57tsdnyh4q8lchyx1fl8d"></p>
<p>If ...https://electrical.codidact.com/posts/289574ATX Computer Power Supply Spark in Non-computer ApplicationGabrielhttps://electrical.codidact.com/users/652272023-09-02T10:18:23Z2023-09-10T14:51:25Z<p>Hello! I would like to ask for your assistance with using a Silverstone DA1650 Gold computer power supply (you can find more about it here: <a href="https://www.silverstonetek.com/en/product/inf...https://electrical.codidact.com/posts/280791Why 3.3V instead of 3V?2kindhttps://electrical.codidact.com/users/534692021-02-14T08:51:58Z2023-08-29T00:51:17Z<p>Usual values used in doing electronics/power supplies are almost always round numbers:</p>
<ul>
<li>5V</li>
<li>12V</li>
<li>28V</li>
<li>48V</li>
<li>60V</li>
</ul>
<p>I understand that...https://electrical.codidact.com/posts/289345Fuse monitoring on multiple batteriesNattihttps://electrical.codidact.com/users/648922023-08-13T07:47:38Z2023-08-13T12:18:05Z<p>Looking for KalleMP who last commented on the link attached.</p>
<p><a href="https://electronics.stackexchange.com/questions/368517/remotely-monitor-condition-of-fuse#:~:text=R1%20%26%20the%20L...https://electrical.codidact.com/posts/282543Trouble understanding how to use adjustable LDO regulatorcosinedhttps://electrical.codidact.com/users/541582021-07-05T04:38:35Z2023-08-12T12:41:19Z<h1>The question being asked</h1>
<p>Ultimately, I want to know why the output voltage wasn't the expected (via calculation) 11.72V when the <em>estimated</em> drop-out voltage at the ~0.1A load w...https://electrical.codidact.com/posts/286049SMPS RequirementsSyehttps://electrical.codidact.com/users/564102022-03-02T09:30:25Z2023-08-12T12:30:14Z<p>I want 3 SMPS (AC-DC) : Vout/Iout - 5V/20A , 12V/75A , 24V/30A Vin (AC) ~ 220V/50Hz I want it such that I can use Hard & Soft Kill Switches for turning off. Can you help me with the same. I ...https://electrical.codidact.com/posts/277846Current Flow in the OFF Time of a Switching Power Supplyjm567https://electrical.codidact.com/users/532992020-09-01T01:13:05Z2023-08-12T11:41:45Z<p>I am having a difficult time picturing the flow of current and the role of the capacitor during the OFF time of a buck converter. Here is my understanding so far. During the ON time the magnetic...https://electrical.codidact.com/posts/285849Flyback transformer for Vout > Vin2kindhttps://electrical.codidact.com/users/534692022-02-06T19:26:16Z2023-08-12T11:36:48Z<p>This question is asked in an addition to <a href="https://electrical.codidact.com/posts/276436">https://electrical.codidact.com/posts/276436</a></p>
<p>Here is a Flyback converter mentioned the...https://electrical.codidact.com/posts/279580The capacitance multiplier revisitedMichaël Bensimhounhttps://electrical.codidact.com/users/536122020-11-26T14:14:24Z2023-08-10T17:08:26Z<h1>Introduction</h1>
<p>A capacitance multiplier is an electronics technique that allows reducing the voltage ripple at some point in a circuit. It is often used in power supplies, after the rect...https://electrical.codidact.com/posts/286110Duty cycle of buck-boost converterCarlhttps://electrical.codidact.com/users/542882022-03-13T07:27:48Z2023-08-10T16:02:50Z<p>I have the following problem: -</p>
<blockquote>
<p><img alt="Image alt text" src="https://electrical.codidact.com/uploads/5mvBEaX8abL6hiHLuPjPFZYx"></p>
</blockquote>
<p>Using Wikipedia I f...https://electrical.codidact.com/posts/287257Buck-boost converter fed from split input supplyAndy akahttps://electrical.codidact.com/users/529872022-10-14T08:46:29Z2023-08-10T15:59:58Z<p>I have <strong>recently finished</strong> designing a buck-boost converter for a job that uses a split (+/-) input power supply. Load power is taken equally from both positive and negative inpu...https://electrical.codidact.com/posts/286030How do "O-ring circuit" differ from an "ORing circuit" or "OR-ing circuit", or are they synonyms?DavidCaryhttps://electrical.codidact.com/users/542652022-02-25T08:34:36Z2023-08-09T21:51:04Z<p>I've seen a few different circuits <a href="https://www.monolithicpower.com/en/simplified-usb-type-c-power-management-design-for-portable-devices">(a)</a> <a href="https://www.google.com/books/e...https://electrical.codidact.com/posts/276649How do I calculate and manipulate the inductance and capacitance of outputs to a connector on a PCB?Hawk2020https://electrical.codidact.com/users/530652020-07-07T23:48:23Z2023-08-09T21:26:51Z<p>I am designing a PCB that has to have class 1 div 1 associated apparatus (only the outputs to the sensor) certification. Essentially, I am using a boost converter to convert the voltage from a l...https://electrical.codidact.com/posts/285814PNP Darlington pair as a current limiterkadamrohan16https://electrical.codidact.com/users/562022022-02-03T10:01:19Z2023-08-09T20:39:27Z<p>I am trying to analyse what is controlling the load current in the below Darlington configuration.</p>
<ol>
<li>Is it the base current of transistor Q3 which is controlling current through R14...https://electrical.codidact.com/posts/281069Why do DC/DC switching controllers seem to favour the buck-boost topology over similar ones like Cuk, SEPIC and Zeta?Mu3https://electrical.codidact.com/users/530142021-03-18T10:13:37Z2023-08-09T10:32:08Z<p>I am looking at various DC/DC converter topologies for a power system I am designing. The most suitable topology for me is one that can perform both step-up and step-down functions, so I am look...https://electrical.codidact.com/posts/284892Flyback converter designSriram14https://electrical.codidact.com/users/546682021-11-16T06:20:12Z2023-08-09T10:29:59Z<p>Hi guys,I'm designing a multiple output flyback converter with 2 outputs at 10v@1 Amp and 5v @ 2 Amps .Input is 20 V dc</p>
<p>Im having some problem with the implementation of closed loop. Ope...https://electrical.codidact.com/posts/286745DC-DC converter using Hartley oscillator and transformerMissMulanhttps://electrical.codidact.com/users/541072022-07-18T20:11:44Z2023-08-09T10:29:21Z<p>Instead of using a buck or a boost converter can we use for DC-DC conversion the circuit Im going to describe in the next lines? First we begin with a Hartley oscillator whose output is fed in...https://electrical.codidact.com/posts/281361Design considerations for a synchronous DC/DC converterMu3https://electrical.codidact.com/users/530142021-04-16T07:38:10Z2023-08-09T10:14:40Z<p>In the field of DC/DC conversion, one can build a synchronous DC/DC converter (also referred to as synchronous rectification). This practice involves replacing a diode with a MOSFET switch.</p>
...https://electrical.codidact.com/posts/285186Flyback transformer with Intrinsic SafetyOlin Lathrophttps://electrical.codidact.com/users/363962021-12-09T19:55:20Z2023-07-11T17:09:10Z<p>I have no experience designing for Intrinsic Safety (IS), but need to do that now. I have read thru IEC 60079-11, which seems to be the relevant standard for my purposes.</p>
<p>The board I ne...https://electrical.codidact.com/posts/286020How to choose the right value for input voltage ripple of an SMPS?2kindhttps://electrical.codidact.com/users/534692022-02-23T17:32:53Z2022-02-23T20:55:39Z<p>Which important system design parameters need to be locked in order to estimate the maximum allowable level of the input voltage ripple of an SMPS?</p>
<p>I have encountered ballpark figures of...https://electrical.codidact.com/posts/276436How do I design a flyback converter? What are the basics I should know?Andy akahttps://electrical.codidact.com/users/529872020-06-30T10:43:59Z2022-01-10T15:30:10Z<p>I need to design a simple flyback converter like this: -</p>
<p><img src="https://electrical.codidact.com/uploads/3rFDTsFvTPgrm1EKXbHYxbyG" alt="Image alt text" /></p>
<p>I want to control duty ...https://electrical.codidact.com/posts/284636Low-frequency PWM-controlled Mosfet heater circuitfrancescohttps://electrical.codidact.com/users/546022021-10-19T15:24:12Z2021-10-29T02:07:23Z<p><img alt="Schematics" src="https://electrical.codidact.com/uploads/gD45tvaHgwTCyaAU5XeWTNuJ"></p>
<p>The circuit above is used to control a 240W ceramic heater by means of a PWM signal at 30Hz,...https://electrical.codidact.com/posts/282572Battery voltage: to boost or to connect in series.DSIhttps://electrical.codidact.com/users/541452021-07-06T15:12:51Z2021-07-24T19:52:01Z<p><strong>Background.</strong></p>
<p>I have a legacy battery system that is comprised of twenty-four 12V Li-ion battery modules (self-protected), enclosed in a shell with the charging connection...https://electrical.codidact.com/posts/282124Meaning of some components around voltage reference in SMPSChupacabrashttps://electrical.codidact.com/users/530332021-06-09T19:25:34Z2021-06-15T12:23:49Z<p>I have generated flyback convertor schematic by TI's <a href="https://webench.ti.com/power-designer/switching-regulator">Webench Power Designer</a>.<br>
Parameters:</p>
<ul>
<li>universal AC ...https://electrical.codidact.com/posts/279816Flyback Converter - Output Ripple2kindhttps://electrical.codidact.com/users/534692020-12-11T13:15:00Z2020-12-12T19:02:48Z<p>I am eager to create a flyback converter for driving the high side MOSFET. Here is a snapshot of my work so far:
<img src="https://electrical.codidact.com/uploads/Fk3VKoaXJxU3mQB4XMFST5zK" alt=...https://electrical.codidact.com/posts/278196How to define Vsat for MOSFET as a switch?Kranulishttps://electrical.codidact.com/users/530422020-09-24T19:41:32Z2020-09-26T16:46:29Z<p>I was looking at this <a href="https://threeneurons.wordpress.com/nixie-power-supply/">design</a>:
<img src="https://electrical.codidact.com/uploads/Zp78CAHwK89eqGAFHZSzXMzr" alt="Image alt text...https://electrical.codidact.com/posts/276224How do I design a boost converter? What are the basics I should know?Andy akahttps://electrical.codidact.com/users/529872020-06-21T10:51:48Z2020-09-21T16:51:16Z<p>I need to design a simple boost converter like this: -</p>
<p><img src="https://electrical.codidact.com/uploads/7C1YD7KSsFtXyWhVz6kbh1FG" alt="Image alt text" /></p>
<p>I want to control duty cy...https://electrical.codidact.com/posts/276378Humming noise from a boost converter's inductorKranulishttps://electrical.codidact.com/users/530422020-06-28T21:36:21Z2020-06-29T16:13:45Z<p>My step-up converter makes audible noise both with and without a load.I am almost certain it is the inductor, because when I hold my finger on it I can feel vibration and it gets quieter. Unfort...https://electrical.codidact.com/posts/276105Replacement power supply voltage and current ratings?Olin Lathrophttps://electrical.codidact.com/users/363962020-06-12T15:59:01Z2020-06-12T17:43:32Z<p>If the external power supply to a device fails, and I can't get the
exact model, what do I need to specify to get the right replacement? I
can re-use the old supply's connector, but what about ...