product designers,electronic circuit board product desiner engineer,company,China

product desing services,product design engineering, professional, low cost China

The Evaluation of Spacings in Electronic Product Design
M. A. Lamothe

Creepage distance and clearance requirements are tied to a variety of electrical and environmental factors addressed by safety standards.

Equipment intended to be approved to IEC standards must be designed with spacings between conductive parts that are sufficient to ensure user safety in the presence of hazardous voltages. Designers need to be familiar with the effects of pollution degree, overvoltage category, and working voltage on their decisions regarding spacing distances. The role of creepage distance and clearance in the designing of an electrical product with hazardous voltages present is often imperfectly understood, as is the fact that these influences represent a three-dimensional problem. Table of contents
Chapter 1: The Portable Electronic Design Process
Chapter 2: Digital and Analog Processing
Chapter 3: Electronic Packaging
Chapter 4: Displays
Chapter 5: Power Sources
Chapter 6: Mechanical Design
Chapter 7: Software and Communications
Chapter 8: Cellular Phones
Chapter 9: Portable PCs
Chapter 10: Personal Digital Assistants
Chapter 11: Digital Imaging Products
Chapter 12: Economics
Chapter 13: The Past, Present, and Future of Portable Electronics
A LIST OF ACRONYMS AND ABBREVIATIONS
INDEX

Review quote
This tutorial for product designers and engineers offers guidance on the development of consumer portable electronics that, presumably, won't drive users crazy. That means the designer must understand how to shepherd a product through all the marketing, manufacturing, and procurement people who have a hand in development. Haskell(an electronics product design engineer) discusses the marketplace, the economics underlying product development, and the features customers do and don't like. He offers detailed information about the engineering of products, with attention to interface and size problems, convenience
and utility parameters, technology trade-offs, and durability.

Biographical note
Bert Haskell is President & General Manager of Wireless Age, Inc., Austin, Texas, a company that specializes in the deployment of wireless network technologies that enable user mobility. He was formerly Vice President for Product Development at Stellar Display Corporation, where he was responsible for the development of flat panel display products. Prior to this he was Director of Marketing for Interactive TV Company Overview
The permanent recruitment and professional search division of the Diversified Staffing Group, World Staffing Solutions provides service with unparalleled precision and dedication to quality.

World Staffing Solutions is a leader in bringing together the expertise of recruitment, credential assessment, immigration, taxation, accreditation, training and retention services.
Job Description
Our Client is looking for a Product Designer for power conversion products. The Company is a leading developer and manufacturer of power conversion products for the renewable energy industry. Power conversion is a critical element of clean power integration with electricity grids around the world. Highly intelligent power inverters are needed to efficiently convert the raw power generated by solar modules, small wind turbines, fuel cells, micro-turbines, and battery storage into high quality AC power that is usable in homes and businesses. The right candidate will be responsible for product design from prototyping to manufacturing of power conversion products.Job Requirements
Duties of the Position:

· Bachelor in Electrical Engineering. Five plus years of product design experience, including design and debugging PCA’s and systems.

· Proven experience in the following areas: analog design, design with programmable logic, design with microprocessors, basic firmware development, power supplies and high current systems.

· Strong electronics manufacturing experience – especially in a contract manufacturing environment.

Clearance is the shortest distance between two conductive parts, or between a conductive part and the bounding surface of the equipment, measured through air. Components that are mounted above the printed circuit board (PCB) must also be considered in the evaluation of clearance. Creepage distance is the shortest path between two conductive parts, or between a conductive part and the bounding surface of the equipment, measured along the surface of the insulation. All conductive parts are considered in evaluating creepage distance, including the pads around soldered connections. The typical solder resist does not reduce the creepage distance required on a PCB.