Direct current losses at the output filter of a switching controller
Both AC/DC and DC/DC switching controllers have a residual ripple in their voltage on the output side, caused by parasitic series resistance ESR and the parasitic inductance ESL of the output capacitor that can create interference in subsequent components and cause electromagnetic malfunctions. Read more ...
Output voltage filtered without losses
The output voltage of switching regulators has a residual ripple that can interfere with components downstream and lead to electromagnetic disturbances. Thus output filters are often used for noise suppression, which may under certain circumstances have an influence on the control loop. Read more ...
Balunless measurement of mixed-mode scattering parameters
Increasing data volumes, as well as enormous increases in transfer speeds, place high demands on the signal quality. This is especially evident with the current interface USB 3.0, which is also known as SuperSpeed because of its transfer speed of 5 Gbps. Read more ...
Power Inductors - 8 Design Tips
A practical guide for the selection of power inductors for DC/DC converters.
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USB Port Protection
The USB-Interface might be the most distributed PC interface in the world. The usage in industryapplications is more and more common. Let’s have a closer look to the special environmental conditions of industry applications.
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LinkSwitch-II® isolated 4 .2 LED driver
Figure 3.269 provides the schematic for a universal input, 12 V, 350 mA CV/CC power supply using the LinkSwitch-II product LNK605DG (U1) in a flyback configuration. Typical applications include LED drivers or battery chargers requiring a CV/CC output characteristic. Read more ...
Forward Converter
Figure 3.179 shows the basic construction of a forward converter. Whereas the energy is temporarily stored with the flyback converter before it is transferred to the second-ary side, in the forward converter, energy is transferred directly between the primary and secondary sides. Read more ...
Effective EMI Shielding Concepts
Despite all extensively discussed and recommended design rules for the EMC-conform design of components, the interaction between different functional groups within an apparatus has often a sobering effect when tested in the EMC laboratory. Read more ...