Power Integrity

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This design guide focuses on small form factor and low power IoT products. Even though these sorts of products are not in the same performance class as server motherboards, not paying attention to signal and power integrity design principles at the beginning of the design cycle may require multiple board spins to get your IoT product working.

Analog Devices, Inc. announced a series of three isolated pulse width modulation (PWM) controllers with integrated 5 kV isolation enabled by ADI’s award-winning iCoupler® technology. The ADP1071-1 and ADP1071-2 are isolated synchronous flyback controllers and the ADP1074 is an isolated synchronous active clamp forward controller.

The new R&S RT-ZVC02/04 multichannel power probe can measure across large current and voltage ranges without having to switch ranges, making it possible to monitor the power consumption of chipsets, radio modules and wearables such as smartwatches. When used in combination with an R&S RTE or R&S RTO oscilloscope, the current drain can be clearly correlated with analog and digital control signals, enabling developers to optimize the battery life of such wearables and wireless devices early in the development cycle.

Rohde & Schwarz has introduced the R&S RT-ZPR20, extremely low-noise power rail probe with a bandwidth of 2 GHz

As you know, "us", Signal and Power Integrity Engineers, are full of tricks, rules of thumb, and shortcuts. These tricks mostly help us understand something, save analysis time and, why not, make us look smarter than we really are!! In that vein, seldom have I encountered a quick and dirty trick as useful and underestimated as S-parameter renormalization.