Power Supply Basics
- Why is EMC such a problem for electrical and electronic equipment?
Semi-anechoic test chamber for EMC testing By Robin Jeffery, Technical Market Analyst at TDK-Lambda EMEA Electromagnetic compatibility (EMC) defines the ability of electrical and electronic equipment to…
- How GaN technology is transforming power supply design
AC-DC power supplies used in the industrial and medical industries have always had three basic requirements: reliability, compactness and the ability to remain cool. Various technological leaps…
- What is the difference between power supply operating efficiency and average efficiency?
By David Buck, Market Development Manager, TDK-Lambda EMEA Before the energy efficiency standards were introduced, the power supply product datasheet and specifications referred only to the operating…
- Can I use a dual output DC-DC converter to get a higher voltage single output?
Many low power DC-DC converter series offer 5V, 12V and 15V single and +/-12V and +/-15V dual output models. If a 24V single output is required, it…
- How is the audible noise level of a QM medical power supply measured?
In accordance with BS EN ISO 3744:2010, a set of sound pressure measurements has been taken on a hemispherical measurement surface set at a 1m radius from…
- Why do QM power supply modules have a narrow output voltage adjustment range?
By offering a narrow output voltage adjustment on our QM power supply modules, we have optimised its design for both cost and efficiency. For example, consider a…
- How do the size and weight of the Genesys+™ compare to its predecessor?
The 5kW Genesys+™ 1U high (44mm) programmable power supply is half the height of the previous generation 5kW Genesys™ 2U (88mm) models, freeing up valuable enclosure space.…
- What makes the QM7 medical power supply range so quiet?
A number of design features help make the QM7 operate quietly, improving the user and patient experience of the medical system. With efficiency levels of up to…
- GENESYS+™ – Isolated analogue control
Isolating analogue control lines on programmable power supplies avoids common mode noise issues, improves accuracy and simplifies any potential ground loops. A test system may operate perfectly…
- What are the key medical compliance features of QM AC-DC power supplies?
Designed as a medical power supply, the QM has an earth leakage of less than 300µA and touch current of <100µA. Even with such low earth leakage,…
