Saturday, August 17, 2013

Learn about Solid State Relays - SSR

Electromagnetic Relays - 

NO - Normally Open - when the relay is not energized or activated, this terminal is open-circuit.

NC - Normally Closed - when the relay is not energized or activated, this terminal is closed circuit.

COM - The Common Center Terminal in relays. This is the center terminal that closes circuit with NC-NO.

The terminals are potential free and floating and are insulated from the control signals or coil windings by many kilo volts. Many provide visible isolation. These terms apply to SSR or Big Contacters too.
    Solid State Relays

    Solid State Relays - SSR

    Solid State Relays - SSR

    They are called SSR as there are made of semiconductors and have no moving parts to wear out. They do generate heat depending on load and switching. Thyristors are used in most as they are rugged, mosfets and IGBT may also be used for various applications.

    In this section you will find SSR designs and PCB layouts which you can study. These were made and sold by me years ago. So the PCB layouts have gone thru some revisions and they worked quite well.

    Applications -

    Many machines and equipment use some SSRs in their products which may need replacement. So the SSR is not only sold to OEMs but also to Service-Maintenance Market. These are also modified as Output Modules for digital outputs coming from embedded systems or Computers.

    Wednesday, August 14, 2013

    Analog Op-Amp Interactive Tutors

    I have made some Web Widgets, these are analog opamp tutors. Interactive Tutorial with Simulated Meters and Potentiometers, demonstrating how Operational Amplifier functions in different configurations.

    Interactive Tutorials using Virtual Electronic Components 

    Slide the Potentiometers just like you would operate a Sliding Control. Drag the Knob on Pot to increase or decrease the resistance. The Resistance is shown is blue letters and dynamically alters value as you slide the pot.

    The mV Source is varied by just moving mouse pointer over the two buttons, no clicking. This reduces finger strain and also you have a long lasting mouse. The mV buttons are special, the variation picks up speed if you let the mouse pointer remain on the button. This is Ramp-up and Ramp-down. This enables you to set it faster with just two buttons.

    Finally you have a DVM a Digital Volt Meter that just Displays the Voltage at any Point, this readout value has to be noted down.

    Op-Amp Simulation using Javascript

    From Soldermans Basic Electronics

    If you wish to examine the code - Analog Tutorials Project Page

    Introducing a new delabs icon - Elektrick the Power Jedi

    I am also attempting a Toy Scope or a waveform display.

    Monday, August 12, 2013

    MunEDA - Enhance Design Performance

    They provide solutions in EDA that simplify the circuit design process and enhance the Performance/Yield. They provide the technology for analysis and optimization of yield and performance of analog, mixed-signal and digital designs.

    MunEDA - Enhance Design Performance

    MunEDA WiCkeD tools are seamlessly integrated into the main industrial standard simulation environments and design frameworks but also support customer specific inhouse simulators and designflows.

    BAS - Basic and Sensitivity Analysis

    "WiCkeD Basic delivers a powerful basic feature compilation to enable the circuit designer to do enhanced topology analysis, constraint setup and management as well as different analysis types for circuit performance, parameter sensitivity and correlation."

    BAS - Basic & Sensitivity Analysis

    MunEDA GmbH
    Stefan-George-Ring 29 81929 Munich, Germany

    Thursday, August 08, 2013

    LED Lighting - The Future is Here

    LED Lighting is more important than you think it is. Start Using Alternative Energy, like Wind Power and Solar, Tidal and even Magmatic.

    LED Lighting - Philips

    LED Lighting at Wikipedia

    On September 24, 2009 the DOE announced that Philips Lighting North America was the first to submit lamps in the category to replace the standard 60 W A-19 "Edison screw fixture" light bulb, with a design based on their earlier "EnduraLED" consumer product.

    On August 3, 2011, DOE awarded the prize in the 60 W replacement category to Philips bulb after 18 months of extensive testing. The 10-W, 900-lumen Philips bulb was made available to consumers in April 2012.

    The same day, CREE demonstrated a prototype lamp producing 1330 lumens with a mere 8.7 W of input power. While the CREE lamp has not undergone DOE reliability testing and no commercial release date was promised, it is an indication that the "21st Century Lamp" performance levels may soon be within reach of commercial products.

    Highly efficient LED Bulb Driver - Infineon

    The highly efficient dimmable LED driver system utilizing ICL8001G sets a new Benchmark with respect to integration, performance, features and total system cost. ICL8001G employs quasi-resonant operation modes with integrated power factor control for off-line residential LED lighting applications in particular 40W / 60W / 100W incandescent bulb replacements.

    Infineon ICL8001G - Bulb Driver

    Infineon ICL8001G - Bulb Driver

    The EVAL-LED-ICL8001G-Bulb02 demonstrates the single-stage flyback and PFC controller ICL8001G in an LED  Bulb application. Its quasiresonant operation mode, primary side control, integrated PFC and phase-cut dimming  control makes it the best in class system solution for dimmable LED bulbs.