Product design, circuit design, eda tools.
Electrical Engineering Metrics What are the EE Metrics – Volts, Amps, Ohms, Henry, Farad, Watts and many more. “EE” is Electrical Engineering. “Metric” from Latin metricus is “relating to measurement”. Combining them is a Acro-Portmanteau. (Acronym) in reference to: EEMetric.com – Electrical and Electronic Measurement Technology (view on Google Sidewiki)
From Signals, Filters, Sampling, Aliasing to Data Converters. This book covers the fundamentals of Mixed-CMOS Design. CMOS Mixed-Signal Circuit Design – R Jacob Baker Published by Wiley-IEEE, ISBN 978-0-470-29026-2, 2nd Edition, 2009. The book’s author is R. Jacob Baker. Examples, Tutorials, and Videos. Some Chapters Chapter 3 Analog Filters 73 Chapter 4 Digital Filters 119 Chapter 6 Data Converter Design Basics 203 Chapter 8 Bandpass Data Converters 285 Chapter 9 A High-Speed Data Converter 301 This book will fill a hole in the technical literature for an advanced-tutorial book on mixed-signal circuit design. There are no competitors in this area. [Read More ....]
This was a attempt to make a Sequential Timer with ICM7217 of Intersil, even though it worked well, it was not developed beyond the prototype stage or first iteration. Only when a product is made in some numbers, the documentation and designs become clear, streamlined and seasoned. The PCB and Circuit are not complete. It may give ideas. During this time, as far as i can remember, these were the only large CMOS devices. 8080-85 and Z80 devices consumed lot of power and needed big boards and supplies. ICM7217 4-Digit, Presettable, LED Up/Down Counter Maxim Study this, if you are [Read More ....]
ADS7816 – 12-Bit High Speed Sampling AD The ADS7816 is a 12-bit, 200kHz sampling analog to- digital converter. It features low power operation with automatic power down, a synchronous serial interface, and a differential input. The reference voltage can be varied from 100mV to 5V, with a corresponding resolution from 24mV to 1.22mV. – From TI Applications l 200kHz SAMPLING RATE l MICRO POWER: 1.9mW at 200kHz 150mW at 12.5kHz l POWER DOWN: 3mA Max l 8-PIN MINI-DIP, SOIC, AND l DIFFERENTIAL INPUT l SERIAL INTERFACE 12-Bit High Speed Micro Power Sampling Analog-to-Digital converter
If you have made an electronic product with a new circuit or code and need to protect it, then these are some Methods. If your Intellectual Property is an Idea, A Hardware Innovation or Software Application; It may need some protection other than patents. Sometimes patents are used for general applications and generic designs. Patent only an Original Idea or Innovation or an Exclusive and Unique Method. If you are small and the innovation very big, tie up with established companies with reputed brands. If you are a source for a certain product component or module, make certain restriction on [Read More ....]
Product Design includes Schematic and Firmware Design. The Mechanical Engineering that goes into making the enclosure and internal construction is also important. The Electromechanical design which is made of electrical circuit, pcb, panel-parts and cable management is sometimes so involved that it is developed with the help of vendors or suppliers. Product design engineering also needs to take care of the costing and related issues. The costing includes the one time investment on design and tools, even custom Mold-Die, Jigs-Fixtures etc. The engineering costs are amortized over the quantity produced, in a product type life-cycle. Manufacturing small quantities is expensive, [Read More ....]
Building discrete semiconductor and passive designs, using Opamps and Mixed Design Circuits are the first step in electronics. Most consumer Electronics have a high analog circuit content. Even in Embedded Systems the interface design that matters for real time systems is an analog circuit. Here are some more analog points in my old notes. The Contact resistance of connectors, thermocouple effects in connectors and solder joints and thermal gradients over the PCB can cause errors when you measure in high resolution. High impedance points of circuit like 500 kilo ohm and above can pick up AC noise and DC leakage [Read More ....]
PCB Thermal Design Care for Analog Circuit Stability If you have a hot power chip near a DC analog circuit, the values will drift, take time to stabilize, this happens even if you use 1% MFR 100ppm. The impact is more if the heatsink is not used and vents and coolers are absent, So in a PCB keep distance between heating power circuits and sensitive analog circuits, some times PCB tracks will carry heat to the Analog area, Hence keep sensitive analog circuits as plugin modules. When you make a PCB try to orient all ICs in one direction, so [Read More ....]
WEBENCH Power Designer Demonstration “The WEBENCH environment provides the end-to-end design and prototyping tools you need to create power supplies or DC-DC Converters that meet your design requirements.” Power Designer – Expert Tips and Techniques for Power Supply Design Power Management – National Semiconductor Simple Switcher, Power Supply, Voltage References, Lighting, Battery Management, Voltage Regulators, DC-DC Voltage Converters. PowerWise – Energy Efficient Solutions and Products
On a Stellaris LM3S9B92 this RDK is a complete, open-tool graphical touch-screen user interface design [Read More ....]
A ThunderBolt Zap can damage electronic parts. The Earth Leakage Circuit Breaker ELCB or Overload [Read More ....]
Keil Application Notes Application Notes provide in-depth information about Keil development tools and various microcontroller [Read More ....]
The Average home user or a majority of mankind have trouble even when operating a [Read More ....]
I have tried VB2 and VB6. It is an easy environment for Hardware Engineers or [Read More ....]
delabs Schematics now on a WordPress, you can comment on the circuits if you need [Read More ....]
how to convert old orcad sch pcb to win32 orcad formats install msdos orcad esp [Read More ....]