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Power Supply Hiccup


Do not attach any mains power test equipment to the AC side (especially a metal cased oscilloscope) or prod about the circuit board whilst connected. Other Mean Well power supplies have a ‘Constant Current Limiting’ mode. Recovery from this condition can be automatic or require recycling of the input power. These are especially useful when powering loads that include electric motors such as computer hard drives, fans, actuators, pumps, etc. have a peek here

Many rack-mounted power systems are specified as being 1U, 2U, 3U, etc. If the overload is still present it will shut down again. Should the overload condition be removed, the supply will again operate normally. Mean Well are constantly revising their data sheets, so be sure to download the latest versions from the Power Supplies Australia website before checking the overload characteristics. news

Hiccup Mode Wiki

This technique is used in many switchmode power supply designs. Depending on the Mean Well power supply in question, it will behave in one of two ways when an overload situation occurs: Go into ‘Hiccup Mode’, or Switch to ‘Constant Current After reconnecting the power and some other messing around I did adjust the pot to see if that was the problem.I've got another of the same model supply, I just hadn't

  1. How do I resolve hiccup mode?
  2. Constant Current Limiting Current Limit Shutdown: In some power supply designs, when an overload occurs the power supply will begin to go into a constant-current limit mode, but when the output
  3. I had not messed with the pot when I first connected it.
  4. Connect with your peers and get expert answers to your questions.Follow element14FacebookGoogle+YouTubeTwitterContentTopicsResourcesDesign CenterMembersStoreAbout UsFeedback & SupportFAQsTerms of UsePrivacy PolicyCookiesSitemapA Premier Farnell Company© 2009-2017 Premier Farnell Ltd.
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  6. January 1, 2011 at 10:50 AM Post a Comment Newer Post Older Post Home Subscribe to: Post Comments (Atom) Popular Posts Isolated & Non-Isolated DC-DC Converters There are two frequently used

Efficiency Calculations for Power Converters A power converter's efficiency (AC-DC or DC-DC) is determined by comparing its input power to its output power. You can estimate this sleep-time interval (Figure 2) by using the following equation:where IIC1 is the forward current of IC1 (10.7 mA with VAUX=12.5V), VC1(0) is the initial voltage stored in As the two topics are closely related, we can answer both questions with this one blog post. I'm a newbie to this stuff.Thanks for any help.- James 894Views Tags: none (add) Reply This content has been marked as final.

For my current project I'm going with RD-65As. Lx1668 As always, do check the datasheet(s) for complete information. He was also an Electronics Technician at B.Braun AG, in West Germany. http://power-topics.blogspot.com/2008/09/over-current-protection-in-power.html This tool uses JavaScript and much of it will not work correctly without it enabled.

element14 is the first online community specifically for engineers. What does 1U, 2U or 3U mean? Hiccup current limit performs the best of the three types; however, the implementation is rather complex. To solve this problem, a dummy load can be placed on the primary so the power supply secondaries will work.


The current limiter protects the regulator from damage by holding the maximum output current at a constant level that doesn't damage the regulator. https://www.power-supplies-australia.com.au/blog/mean-well-power-supply-hiccup-mode View my complete profile raquywux EDN About Us DESIGN CENTERS Latest Analog Automotive Components|Pkging Consumer Designcon DIY IC Design LEDs Medical PCB Power Management Sensors Systems Design Test|Measurement Wireless|Networking Loading... Hiccup Mode Wiki Our products include AC/DC switching power supplies, LED Drivers, DC/DC converters, DC/AC inverters and battery chargers. Foldback Current Limiting Circuit Diagram This technique is employed in linear power supplies because it reduces the strain on the supply's internal power devices to minimum.

Tony Green majored in Aeronautics and Aerospace Design at San Mateo Community College. navigate here However, to provide the newbie (newcomer) with some backgro... Also, if the power product has an Output Good signal, this can be used as an indication that the power supply is either faulty or could be in an over-current mode. Like Show 0 Likes(0) Reply Actions Re: Basic Switching Power Supply Question jm1024 Sep 25, 2013 3:31 AM (in response to Colin Barnard) Colin,After doing a bit of poking around it Overcurrent Protection Circuit For Power Supplies

It seems the "I" stands for Isolated. Please try the request again. One drawback of fold-back current limiting is that if the supply turns on into a heavy capacitive load, it could latch-up at a reduced current before reaching its full output voltage. http://dotbowl.com/power-supply/power-supply-makes-clicking-noise-when-i-press-power-button.html Careful if you touch them on their pins, they may well be holding a charge and will give a nasty nip if you short them out.

Sign in Email Verified Thank you for verifiying your email address. What does SELV mean for Power Supplies? To solve the equation, you must first determine VC1(0).

We strongly recommend that you read the data sheets carefully when selecting a power supply.

The system returned: (22) Invalid argument The remote host or network may be down. Therefore, always check the power supply's "Instruction Manual" to be sure you understand the precautions associated with the power product's over-current-protection feature. What type of LED driver or power supply do I need? Please try the request again.

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The response of these power supplies to a low load on the primary is to drop into something known as "hiccup mode." In "hiccup mode" the power supply shuts down, then What is PFC and why do I need it? As always, do check the datasheet(s) for complete information. Generated Wed, 22 Feb 2017 11:41:58 GMT by s_wx1096 (squid/3.5.23) ERROR The requested URL could not be retrieved The following error was encountered while trying to retrieve the URL: Connection

If no load is found, or the load is too low, it shuts down again and the cycle repeats until the proper load is established or power to the supply is How does a Mean Well power supply behave in an overload situation? The system returned: (22) Invalid argument The remote host or network may be down. If no load is found, or the load is too low, it shuts down again and the cycle repeats until the proper load is established or power to the supply is

Sorry to be asking such a basic question. The cord I'm using is 3 prong 18AWG. For example, assume that the circuit in Figure 1a works with a UCC3570 PWM controller. Figure 1b represents a typical shunt-voltage regulator to regulate the VCC that powers the PWM controller.

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