Estimated between Sat. Oct. 15 and Sat. Oct. 29 200–500 Watt AC-DC Power Supplies Request a Sample / Buy Now The NTS 500 series of enclosed AC-DC power supplies comprises four single output models, providing standard voltages of 12 V, 18 V, 24 V or 48 V, plus 5V standby and 12 V fan outputs. All four models accept a universal input of 85–264 Vac and have a typical full load efficiency of 85%. Features include single wire current sharing, remote sense and remote inhibit, plus remote power fail and DC power good indication. Enclosed NTS500 power supplies can be specified with end or top mounted fans and can deliver up to 500 watts of output power. These digitally controlled power supplies feature a PMBus™-compliant I2C interface that enables critical parameters such as temperature, output voltage and current to be monitored remotely. Universal PMBus GUI Software Package NTS500 Series Data Sheet 85 V to 246 V Output Voltage: 11.4 V to 50.4 V Size (L x W x H):

7.000" x 4.000" x 1.500" Frequency: 47 - 63 Input Voltage: 85 - 264 VAC Inrush Current: 50 A max., cold start @ 25°C Efficiency: 85% typical at full load, nominal line input Safety Ground leakage: < 0.5 mA @ 50/60 Hz, 264 VAC input Output Power: 200 W convection, 500 W with forced air Hold up time: 20 ms @ 500 W load Adjustment range: +/- 5% Power fail and remote inhibit Optional fan cover (-CF suffix) Optiona end fan cover (-CEF) Single wire current sharing 12 V fan output Built in OR-ing diode / FET POE Isolation on the NTS508 Models - Stock Check 09/21/2016Vicor Corporation Introduces New 60V Cool-Power ZVS Buck-Boost Regulators 09/15/2016Maximum Load: the Wrong Specification for Pulsed Power The Wrong Specification for Pulsed Power Bi-Directional Energy Flow Using DC Power Transformers Principal Systems Application Engineer

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Be in the Know! Stay up to date on what’s happening in the power industry and here at Vicor, and gain valuable insight from our power experts.Power Supply: AC/DC, Isolated, w/ PFC, > 90W Power Supply: AC/DC, Isolated, w/ PFC, > 90W TI Designs & reference designs Application notes & user guides Selection & solution guideshome rooftop air conditioning units Product bulletin & white papersexternal ac to dc power supply Blogs & authored articlesyork air conditioning units parts Similar end equipment solutions AC/DC Isolated Power Supply with PFC > 90WAn AC/DC Isolated Power Supply with PFC > 90W is used to convert the AC power lines to an isolated regulated DC output for powering

notebook computers and other equipment. Typically, these operate with a wide-range of AC inputs from 85V to 265V AC (for worldwide source voltage compatibility). Generally, there is only one output in the 12V to 20V range which is compatible with most battery packs. Typically, above approximately 90W, Power Factor Correction (PFC) is used. One of the most desirable attributes of an AC/DC supply is high efficiency. To realize this, Zero Voltage Switching is incorporated. Specifically, this Active Clamp and Reset technique features the benefits of Zero Voltage Switching, simplicity and few components. EEPROM Emulation With the TMS320F28xxx DSCs Flash Programming Solutions for the TMS320F28xxx DSCs TMS320F281x Boot ROM Serial Flash ProgrammingHomePower Supplies & Wall AdaptersAC-to-DC SwitchingEnclosed-Single Output AC to DC Power Supply Single Output 12 Volt 2.1 Amp 25.2 Watt + Add to my favorites Data Sheet (current)  [297 KB ] Learn more about Jameco ValuePro, ReliaPro and BenchPro brands.

Request a Large Quantity Quote : Size (L x W x H) (inches): 3.0 x 2.0 x 1.1 Ripple and Noise (mV p-p): 120 Load Regulation: 0.5% Line Regulation: 0.5% Input: 88-264VAC @ 47-63Hz 5G Vibration Able to withstand 300VAC surge input for 5 seconds Short-circuit/overload/overvoltage protection 3-year warranty Certifications: UL/CUL/TUV/CE/CB For more 12 Volt power supplies. Primary Output Voltage (VDC)12 Maximum Output Power (W)25.2 Input Voltage (VAC)88 to 264 Input Frequency47 to 63 Maximum Input Current (A)0.7 Output Connector TypeScrew Terminal Block Product TypeAC to DC Power Supply AC to DC Power Supply Single Output 12 Volt 12.5 Amp 150 Watt AC to DC Power Supply Single Output 12 Volt 1.3 Amp 15.6 Watt Image is representative only Martek Power is a market leader in designing and manufacturing AC-DC power supplies. Our standard and custom designed AC-DC power supplies are qualified by OEMs and system integrators worldwide for diverse applications in the Military, Aerospace, Medical, Railway, Automotive, Computing, Data storage, Telecom, Networking, Instrumentation, Laser, Lamp/ Lightings and other Industrial markets.

Rated individual Output Power ranges from 20 watts to over 10,000 watts; our technology can accept wide input voltage frequency from 50 to 400 Hz and wide input voltage from 40 Vac to 530 Vac either from single or three phase input; products are available as On-board Modules, Chassis Mount and Rack Mount. Our power supplies can meet the most stringent requirements as far as output noise and ripple, medical leakage, EMC, overall efficiency, power density, redundancy and wide operating temperature range.Martek Power is well versed with various industries' standards, regulatory compliance, specific requirements and can design and manufacture custom AC-DC power supplies to meet your system’s requirements.Sorry for the inconvenience but we’re performing some maintenance at the moment, If you require further support please use the details below, otherwise we’ll be back online shortly!In today’s mobile age, our cell phones keep us connected to everyone 24×7. Without mobiles, we’ll all be back to the Stone Age.

But irrespective of their class, they all run on a battery which goes down at the end of the day. The smarter your phone, the sooner it runs out of charge. Have you ever wondered about the one thing that keeps your phones going? Yes, we are talking about your cell phone chargers here. Cellphone chargers are nothing by simple AC to DC converters, i.e. they take the regular AC supply of 220 volts coming to our homes, and give a constant DC output voltage of around 5 V (approx). In this article, we are going to talk about the internals of a cellphone charger and even create a working circuit. The cellphone charger extracts the power from the home supply (AC 220V) and converts it to a DC level of required voltage. The voltage output is fairly constant which means it is regulated. The output voltage remains constant whether the load current changes or there are fluctuations in the input AC voltage. This is achieved in a series of steps: Step 1: Step down the high input of 220V to a working output voltage.

This is achieved with the help of a transformer Step 2: Convert AC signal into a DC signal using rectification Step 3: Smoothen the output of the rectifier by filtering the ripples from DC rectification Step 4: Generate a steady output signal with the help of a regulator The circuit below gives a high level view of the working of a “regulated power supply”. The components used are very common and simple. Most of you know what goes on inside of them. The transformer contains two huge copper coils, one between the two terminals of the input power supply and other between the two terminals of the output. Here we use a step-down transformer which means it will convert high voltage to low voltage. The number of turns of the coil inside will determine the voltage supported at input and output both. Vin = Input AC voltage Vout = Output AC voltage Nin = Number of turns at the input terminal of transformer Nout = Number of turns at the output terminal of transformer

Now comes the rectifier part. This converts the AC voltage output of the transformer to a DC voltage. It just reverses the polarity of one half of the period of the AC signal. This will make both parts have the same polarity. Here we use a full wave bridge rectifier to convert the AC signal to DC. The output from the rectification stage is DC, but hardly constant. So, we use capacitive filtering to smoothen the output. In this example, using a simple low pass filter at the output of the rectifier, however in real life, higher order filters may be used, which would give a much more smoother output. The filtering significantly smoothens the output, but even after that small ripples remain. If we use this directly to charge our phones, the constant fluctuation in the voltage may damage the device. It is very important to have a steady output voltage with minimal fluctuations. This is where the regulator stage kicks in. Here we have used a simple zener diode based regulator.

The tendency of a zener diode is to have a fixed voltage between its two terminals when reversed biased. So when input voltage changes, the current through the zener diode also changes inversely so that the output is constant. This regulator is quite simple to create, but its is that it wastes a lot of power. So, the cell phone chargers typically use IC voltage regulators, such as IC 7805, IC 7806, IC 7812 etc. Combining all the steps explained below, here’s a working circuit for “regulated power supply”. You can even go ahead and run it with DoCircuits and see it working for yourself !! Try it on DoCircuits ! All the symbols have their usual meanings. Function generator is used as a power input source to the system. OSC1 and OSC2 are the CRO’s placed at the input and at the output terminals and can be used to study the changes between them. So, hope you will now appreciate the small charging device at your home a little better, and if it breaks down, don’t hesitate to open it up and pry upon the internals.