How filter ringing can lead to power-supply failures
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2010-02-19 |
| Have you ever snapped on the input voltage to your power supply and found that your power supply has failed? |
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| Damping an input filter, Part 2
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2009-01-23 |
| Here are some practical methods of controlling the source impedance in switching regulators. |
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| Damping an input filter
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2009-01-12 |
| Learn how to prevent oscillation problems in the switching topology that relies heavily on an input filter |
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| Vary power supply frequency to minimise EMI
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2009-02-16 |
| Here is a technique that may help you pass the EMI requirements, and possibly even simplify your filter design |
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| Accurately predict loop gain in buck converters
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2008-03-01 |
| An accurate and fast approach to predicting the loop gain with different output power filters for the buck converter requires only two closed-loop measurements using a network analyser and a few algebraic calculations. Designers can then predict the loop gain for any output power filter by putting the inductor and capacitor parameters into one algebraic formula |
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| Modelling a capacitor-bypass network
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2008-11-18 |
| Understand how to properly model and apply bypass capacitors to improve the power supply. |
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| Interactions in modelling a capacitor-bypass network
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2007-10-15 |
| Bypass capacitors may not have the glam of ICs, but they are vital to proper circuit performance. Understand how to properly model and apply them. |
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| Lessen servo amplifier-sourced noise
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2008-09-04 |
| Although the motion-system designer can't change servo amplifier rise rate, noise can be minimised. |
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| Use active PFC to boost motor efficiency (Part 2)
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2009-12-03 |
| There is tremendous potential for worldwide energy savings in the current trend to upgrade electric motors and motor controllers. |
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| Get control of buck regulator high step-down ratios
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2007-01-30 |
| This article discusses Emulated Current Mode Control (ECM), a recently developed version of current mode control that drastically improves the ability to operate with very high step down ratios while maintaining good noise immunity. |
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| Motor efficiency depends on PFC (Part 2)
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2009-10-29 |
| Active power factor correction (PFC) can achieve very high power factors with reasonably sized components, although the energy efficiency may be slightly lower than with passive techniques (94 per cent compared with 96 per cent, for example) due to the addition of switching components. |
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| PI-IPM cuts motor drive design time, risk
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2003-08-18 |
| power |
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| Perform fault monitoring, manage backplane power
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2004-09-16 |
| Perform fault monitoring, manage backplane power |
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| Benefits of multi-phasing buck converters (1)
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2007-11-16 |
| Mid-level design tutorial shows the advantages of the interleaved buck topology for improving response and reducing component stresses |
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| VIPower makes easier PFC converters
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2003-11-03 |
| Since January 2001, the Euro- |
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