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Engineering Reference Materials for IGBT Schematic
  • Galvanic isolation for IGBT-Driver

    Usually, an IGBT (Insulated Gate Bipolar Transistor) is described in the following way: "An IGBT is a combination of a field effect transistor and a bipolar transistor where an N-channel FET controls a bipolar transistor". Although this sentence describes the basics very well, in the case of IGBT

  • Using NEC Optocouplers as Gate Drivers in IGBT and Power MOSFET Applications

    Reviews the characteristics and technical requirements of using an NEC high speed optocoupler to gate drive an IGBT or Power MOSFET. ./e473979d-1b85-4392-9057-c8701495d79a ApplicAtion note. AN3007. Using NEC Optocouplers as Gate Drivers. in IGBT and Power MOSFET Applications. by Van N. Tran

  • IGBT Power Losses in Induction Heating Applications

    IGBTs with blocking voltages of about 1200 V are widely. used in single-ended induction heating applications. During. turn-off, the high voltage impressed across the IGBT. together with its residual current cause considerable. turn-off losses. During the on-state of the IGBT, the power. lost due

  • Expanding the Safe Operating Area of Polypropylene Dielectric IGBT Snubber Capacitors

    Important developments of IGBT's (Insulated Gate Bipolar Transistors) in recent years have been focused on increasing power handling capability and increasing reliability including short circuit tolerance. Snubber capacitors have also undergone changes in construction enabling increased power

  • Comparing the Incomparable: Understanding and Comparing IGBT Module Datasheets (.pdf)

    This might sound somewhat overdone but comparing IGBT modules using datasheets is. not as easy at is might appear. A rough comparison can, of course, be made using the. component blocking voltage (VCES, e.g. 1200V) and the nominal current. (ICnom = 100A, 200A...). On closer inspection, however

  • Overview of NEC / CEL Optocoupler Products for Motor Control Applications (.pdf)

    This paper addresses various applications where NEC/CEL optocouplers offer galvanic isolation for driving MOSFET / IGBT devices in industrial applications including general-purpose inverters, AC servos power switching, home appliances and motor control applications

Discussions about IGBT Schematic
  • Re: What Kind of Transistor?

    Most of the schematic circuit diagram show IGBT like the one you have presented. But the actual standard symbol has an inclined line between collector and emitter.

  • Re: Grid Connected PV System

    dear umer i am an automation engineer ,after the googling i got the information which i will like to share with you. Operating a renewable energy system in parallel with an electric grid requires special grid-interactive orgrid tie inverters (GTI). The power processing circuits of a GTI are simil...

  • Re: Converter

    Diode looks acceptable. Since you have changed the design from a 20Vdc on your schematic to a non-isolated 240Vac rectified (340Vdc?) power source, the IGBT and opto-isolator WILL be absolutely necessary. This information should have been part of your original post. The spec sheet and application...

  • Re: IGBT Dimming ??

    IGBT or FET based dimming has been around for quite a while. Unlike the posted schematic the circuit is usually realized by using 2 devices arranged in anti-series. The main reason to use this over conventional triac dimming is for capacitive loads such as electronic low-voltage lighting were reve...

  • Re: Vibration Transducers for Driving Simulation

    Here is a sketch of a home made vibration transducer. I do not have time now, to cover the details. This works. If you think you may want to play with this Idea, I will send you the IGBT that would do the job. and a schematic and more detailed construction info. I also have the transformer but it is...

  • Re: Power Supply Question...

    Actually, Cnpower had the same recommendation as StandardsGuy. I have a couple controllers on my desk that are rated 100A continuous, 300A peak. They will produce voltages from 0-48. Control over output is as described by cnpower: a very low-current circuit providing PWM switching of big transis...

News about IGBT Schematic
  • What Rate of Amps Can I Charge Deep Cycle Battery?

    This is a schematic of an idea I've had for re-organising my emergency power supply for brown outs. The solar array will only be connected to the battery during brown out. I have a 10amp MPPT controller which I know I could wire to the 2 x 120watt panels, but I believe that would restrict the charg

  • Junior / Graduate RF Engineer

    Junior / Graduate RF Engineer rn rnOur client, based in Leeds requires a Junior RF Design Engineer to join their team working on new wireless modules. rn rnThis is a superb opportunity for graduates with an interest and experience in RF electronics to advance within the wireless industry. The role is to design, simulate and develop new products and modules for wireless communication technologies. A strong knowledge of PA Design for LTE communications is desired. rn rnThe ideal candidates will have knowledge of: rnRF Design, PA Design, Receivers, Transmitters, RF PCB layout techniques, RF simulation tools, Schematic capture and RF Systems ...

  • New CadSoft EAGLE update brings an enhanced design environment, increased flexibility and cost savings for customers

    CHICAGO – PCB design solution vendor CadSoft Computer, a Premier Farnell company, has today launched Version 7 of its award winning EAGLE PCB software. The update to the popular software brings a modern design environment with increased flexibility, enabling users to develop custom schematics using commercial standard software at a fraction of the cost. New features include an enhanced autorouter with significantly less transition points, resulting in more cost-effective and efficiently routed PCBs that require fewer manual interactions. The new autorouter also enhances productivity and performance by utilizing multi-core machines, running each routing variant on its own processor simultaneously. Users will benefit by having multiple configurations of the same routed board to choose from, and can use it to select the best outcome for his design. Version 7 supports larger design teams and more complex designs by enabling large schematic designs to be organized into small functional blocks, which can be assigned to different team members and then easily integrated when complete. This type of hierarchical methodology has significant advantages, giving large organizations a “global view” of the functional blocks of the project to make it easier to locate and change aspects of the schematic or layout. Enhanced license management features have also been introduced to protect customers’ software investment, while enabling single-user licensors to install the software on up to two devices. For multi-user license owners it will be easier to manage the seats from a license server with better protection of the software. EAGLE Version 7 also provides a new ULP to export IDF files. A basic model with placeholders for the 3D models of all components can be exported, to be used for preliminary checking. A comprehensive 3D model can be created with Simplified Solution’s “IDF-to-3D” tool which will be available in the CadSoft web shop later this summer. “CadSoft EAGLE v7 offers greater flexibility than ever before for design teams, with new capabilities that extend the software to more complex design within larger organizations,” said, Thomas Liratsch, Managing Director at CadSoft. “This means we can support more customers through each step of the design process, providing the tools that enable engineers to pull the raw components of any electronics system together, whether they are starting out in the industry or are experienced board-makers.” The latest version of EAGLE is now available to download here. About CadSoft CadSoft Computer GmbH and CadSoft Inc. are part of Premier Farnell plc., one of the world’s leading distributors of electronic components, products and services. CadSoft specializes in the development of the popular CAD-Software EAGLE used by design engineers worldwide for over 25 years. EAGLE is a user-friendly, powerful and affordable software for efficient circuit board design (PCB design) and combines the modules schematic editor, layout editor and autorouter in a single interface. Shared Open Source User Language Programs (ULPs) guarantee maximum flexibility by enabling various features, such as simulation, realization of individual instruction sequences, data export and import. DesignLink feature provides access to data and prices on over 4 million products from Newark, Farnell and element 14. EAGLE users benefit from free support through dedicated experts, active customer forums, the EAGLE community on element 14, webinars and training on demand. EAGLE is available for Linux®, Mac® and Windows®. Its flexible licensing model includes free lifetime support and maintenance, which offers great value for educational institutions, companies and individuals. About Premier Farnell Premier Farnell plc (LSE:pfl) is a global leader in high service distribution of technology products and solutions for electronic system design, maintenance and repair. Its differentiated proposition includes 29 local language transactional websites, and the critically important element14 Community for design engineers – an industry first ( With sales last year of £952m the Group distributes its comprehensive portfolio of products and services throughout Europe, North America and Asia Pacific, supported by a global supply chain of over 3,500 suppliers and an inventory profile developed to anticipate and meet its customers’ needs. While global in scope, Premier Farnell recognizes the individual needs of each market and has continued to internationalize its model accordingly. It trades locally as Farnell in Europe, Newark/element14 in North America and Mexico and Farnell Newark in Brazil. Across Asia Pacific the business trades as element14.

  • Go Analog With A Resistance-Based Calculator

    Do simple calculations with your own math box. Ralph Smith The next time you need to crunch a couple of numbers, resist the urge to grab a digital calculator. Instead, round up some variable resistors, also known as potentiometers, and wire them into an analog mathematics rig. By twisting the potentiometers' knobs and measuring the resulting voltage or resistance with a digital multimeter, you can perform simple multiplication and addition without a microprocessor in sight. MATERIALS: Digital multimeter Three 1K-ohm linear potentiometers 10K-ohm linear potentiometer LM7810 voltage regulator 0.33?F electrolytic capacitor 0.1?F electrolytic capacitor SPST on/off toggle switch Four 25/32-by-15/32-inch knobs Red binding post Black binding post Banana-to-banana cables Two 9-volt batteries Two 9-volt-battery holders 5.5-by-8.66-inch project box Roll of 22-gauge hookup wire TOOLS: Wire cutters Soldering iron Screwdriver Power drill 5/16-inch drill bit Your handy math box schematic. David Prochnow INSTRUCTIONS: Follow our schematic diagram for building a 10-volt power supply from the 7810 voltage regulator. Wire the two 9-volt-battery holders together in series by soldering a black wire from one holder to the other holder's red wire. Drill holes for the potentiometers and binding posts; you can use our schematic diagram's drilling template as a guide. Solder the remaining red wire from the joined battery holders to the red (+) binding post on the switch. Solder the remaining black wire to the black (-) binding post on the switch. Solder two 1K-ohm linear potentiometers in series to create a circuit that will help you perform simple addition. Solder one 1K-ohm linear potentiometer and the 10K-ohm linear potentiometer together as voltage dividers to make a multiplication circuit. Wire the power supply to the voltage-divider potentiometers according to our schematic diagram. Use the binding posts for collecting the black (-) and red (+) wires together. Join the series potentiometers and the voltage-divider potentiometers to the respective multimeter inputs. The voltage dividers, used for multiplication, will connect to the multimeter via the binding posts and the banana-to-banana cables. The series potentiometers, used for addition, are soldered to the multimeter's two probes. Prepare the probes by snipping them off and soldering each remaining wire to one end of the potentiometer series. Place the potentiometers and power supply inside the project box. Secure the knobs to each of the potentiometer's shafts. Mark the range of each addition circuit's knobs from 1 through 10 in a clockwise direction. Next, mark the range of the multiplication circuit's knobs from 1 through 0 in a clockwise direction. (See the photo above for guidance.) Switch the multimeter's ohmmeter to 2,000 ohms for addition, and calculate sums using the series potentiometers' knobs. For multiplication, use the multimeter's voltmeter (set to 20 DC volts) and measure the product of the voltage-divider potentiometers' knobs. OPERATION: Two modes are used on the multimeter. The ohmmeter displays the series potentiometers' sums, and the voltmeter displays the voltage-divider potentiometers' products. Addition: Set up the multimeter for addition calculations by connecting the red probe wire to the V?mA (+) input and the black probe wire to the COM (-) input on the multimeter. Turn on the multimeter and set its selector dial to its ohmmeter function with a setting range of 2,000 ohms. Rotate each knob on the addition potentiometers, and watch the sum on the multimeter display. Multiplication: Set up the multimeter for multiplication by connecting the red banana-to-banana cable to the V?mA (+) input and the black banana-to-banana cable to the COM (-) input on the multimeter. Plug the other end of each cable into the matching-color binding post. Turn on the multimeter, move its selector dial to the voltmeter function, and set the range to 20 volts. Turn on the SPST switch. (Note: This switch sends 10 volts of DC power through the voltage-divider potentiometers.) Turn each multiplication potentiometer and see the product on the multimeter display. Notes: There are two noteworthy features about the multiplication function of the analog calculator: The products are decimal fractions. This is because the potentiometers act as voltage dividers. For example, the first potentiometer divides the reference voltage (i.e., 10 volts DC) in half, which is equivalent to multiplying the reference voltage by 0.5. Similarly, the second potentiometer multiplies the first product by 0.5. Therefore, if each potentiometer is placed at its halfway point, the multimeter will display a product of 2.50, or ((10 * 0.5) * 0.5) = 2.50. The second feature of the analog calculator's multiplication function is the presence of an obvious calculator error. Can you spot it? As the two 9-volt batteries begin to lose power, the resulting products will be lower than you would expect to see. For example, with both potentiometers set to 1, the anticipated multimeter display would be 10 volts. As the batteries age, however, the multimeter might display 9.55 volts with both potentiometers set to 1. Therefore, our calculation would be: ((9.55 * .5) * .5) = 2.39. This article originally appeared in the August 2014 issue of?Popular Science.

  • Welcome To The Lab Of An Apollo Computer Anatomist

    Blanche in her workshop. Photograph by Ray Lego Fran Blanche's workshop is more than a place to unwind. It's home. "I put a bed in my office," she says. Her fashion business is downstairs; upstairs is a music studio and a laboratory with 30 years' worth of tools. A private collector recently asked Blanche?to study part of his Apollo-era Launch Vehicle Digital Computer (LVDC), which NASA designed to fly a Saturn V rocket. "All modern boards would come to emulate it," Blanche says. "Trouble is, there's no information about how it was constructed."? Blanche''s workshop in detail. Photograph by Fran Blanche 1) Tektronix 564B oscilloscope.?Blanche owns two, and they help her examine DC- and audio-frequency signals. 2) Articulated dental-exam lamp.?Designed in the 1940s, the lamp has a tightly focused beam that gives Blanche a clear view of a project from any angle.3) Homemade adjustable DC-power supply.?Whatever current and voltage a project requires, Blanche's custom-built device can usually provide it.4) Heathkit 5-watt resistor substitution box.?No schematic is perfect. This device helps test various resistances in a circuit before installing the real deal. 5) 25-watt Weller soldering iron.?"I have used this iron since 1978, and it has never failed," says Blanche. One of LVDC''s page-assembly boards. Photograph by Fran Blanche Saturn vs. LVDC:?The launch-computer assembly could autopilot Apollo's 363-foot-tall, 6.2-million-pound Saturn V rockets. Dozens of page-assembly boards like this one comprised each of the LVDC's three computers. By carefully dissecting a board, Blanche uncovers its components and construction methods. This article originally appeared in the August 2014 issue of?Popular Science.

Product Announcements for IGBT Schematic
FKN Systek, Inc.
IGBT Connector and Cable Assemblies

IGBT Connector and Cable Assemblies from 2E SysCom. 2 Pin IGBT Connectors mount PCBs directly to IGBT Modules. The IGBT connectors and cable assemblies from 2E SysCom are designed specifically for attaching to the spade terminals on IGBT modules. These are used to connect the IGBT power modules to a printed circuit board. Suitable for 2 spade tabs 2.8x 0.5mm, the connectors are made with integrated automatic locking clips built in. Three grid spacings for tabs are available. (4.0, 4.7, and 6.0...

Aerovox Corp.
IGBT Snubber Capacitors for Power Electronics

Film Capacitors for IGBT Power Electronics Applications. Aerovox snubber film capacitors are designed for the high peak current operation required for protection against transient voltages. Such voltages are caused by the high dI/dT generated in switching power electronics applications. Aerovox IGBT Snubber capacitors are offered in standard voltages of 630 VDC  to 3,000 VDC  for 100,000-hour operation.

Avago Technologies
4A IGBT Gate Drive Optos

New 2.5 - 4A Smarter, Lower Cost, Gate Drive Optos. New Fully Featured Smart Gate Drives Save!. The ACPL-336J and ACPL-337J are fully featured 2.5A and 4A gate drive optocouplers designed to significantly reduce system costs and board space while improving overall power efficiency and reliability. New fully featured, highly integrated, high output, gate drive optocouplers drive high power MOSFETs or IGBTs directly lowering installed cost and reducing the number of external components. These new...