Category | September

Higher Functionalities in Power Electronic Modules

Posted on 01 September 2008

      Improvement is achieved in thermal design and space requirements Modern inverter applications and sophisticated control schemes demand a precise current measurement. Different strategies can be utilized, each providing specific advantages and disadvantages. Of special interest is the possibility of higher integration providing high accuracy current measurement with digital output and galvanic separation. [...]

IGBTs for 3-level inverters

Posted on 01 September 2008

      Improved efficiency in DC/AC conversion Electrical energy is an extremely valuable commodity and many market studies demonstrate that the demand for electrical energy is continually increasing exponentially. In the period from 2001 to 2006, energy consumption increased by 16.1% increase (Source: BP Statistical Review of World Energy, June 2007). Owing to the [...]

Negative Transient Conditions on Motor Control ICs

Posted on 01 September 2008

      Accentuate the positive – mitigating the impact High voltage and integrated IC (HVIC) gate drive controllers are increasingly important components in the MOSFET- and IGBT-based inverter designs employed in modern motion control applications. The article explains how designers choosing the latest rugged and robust high voltage IC technologies can protect against the [...]

Controlling Current in Hybrid Vehicles

Posted on 01 September 2008

      Deceleration regenerates braking energy The use of hybrid vehicles that combine the best features of the internal combustion engine with an electric motor is increasing. The electric motor assists the engine when accelerating or hill climbing and in low-speed driving conditions where internal combustion engines are least efficient. Some hybrids also automatically [...]

The Power of Motion

Posted on 01 September 2008

      Analogue Products Fuel MotionFire Development Platform High performance and efficient analogue content plays an essential role in Arrow’s latest motor control development platform. Electronically controlled motor drives are a vital part of machinery throughout the industrial, medical and automotive environments. Until the introduction of digital systems, motion control schemes relied heavily on [...]

A Balanced Approach to Battery-Charging

Posted on 01 September 2008

      Correctly balancing delivers improved battery performance Charge-balancing for series-connected battery cells means balancing the trade-offs across a number of techniques. Whilst battery cells connected in parallel tend to be self-balancing, cells connected in series will typically need to be balanced to prevent over-charging which can lead to over-heating, increased pressure and reduced [...]

Active Matrix OLED

Posted on 01 September 2008

      The next generation Display Technology The latest active matrix OLED (organic light emitting diode) displays have superior picture quality and can be manufactured super thin. Prototypes with a thickness of just 0.25mm are already shown. These types of displays require specific power supplies to achieve best picture quality and smallest solution size. [...]

Digital Power

Posted on 01 September 2008

      What’s been happening? For several years now, the interest in digital power has grown, and commercial products based on such technology have been released to market. However, if for some applications such as UPS, computers, or mobile applications digital power is nothing new, then for others such as board mounted products, the [...]

Power Supply Design Made Easy

Posted on 01 September 2008

      Using Integrated Switching Regulators When it came to power supply design, most Engineers would scratch their head thinking, “Where do I start?” Decision must be decided concerning which typology – buck, boost, flyback, half-bridge, fullbridge, etc. How about control scheme, voltage mode, current mode, constant-on, or R3? What is the behavior as [...]

Backlighting High Definition Television Sets

Posted on 01 September 2008

      What Type of LED Should Be Used As consumers demand larger panel HDTVs and higher resolution, the demand has rapidly shifted from plasma HDTVs to LED HDTVs. According to DisplaySearch, sales of plasma HDTVs will peak in 2008 at $24 billion whereas LCD HDTVs will enjoy a $75 billion market in 2008 [...]