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Surge protectors for application on multiconductor and coaxial, balanced or unbalanced, data, communications, and signaling circuits with voltages less than or equal to 1000 V rms or 1200 V dc are covered. These surge protectors are multiple-component series or parallel combinations of one or more nonlinear elements and zero or more linear elements. The tables of typical performance values provide a means of comparison among various surge protectors. They also provide a common engineering language beneficial to the user and manufacturer of surge protectors used in low-voltage data, communications, and signaling circuits.

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The power supplied to elements in an electronic design affects the way circuits operate. Although this is obvious when stated, today's set of high-level design languages have not had a consistent way to concisely represent the regions of a design with different power provisions, nor the states of those regions or domains. This standard provides an HDL-independent way of annotating a design with power intent. In addition, the level-shifting and isolation between power domains may be described for a specific implementation, from high-level constraints to particular configurations. When the logic in a power domain receives different power supply levels, the logic state of portions of the design may be preserved with various state-retention strategies. This standard provides mechanisms for the refined and specific description of intent, effect, and implementation of various retention strategies. Incorporating components into designs is greatly assisted by the encapsulation and specification of the characteristics of the power environment of the design and the power requirements and capabilities of the components; this information encapsulation mechanism is also described in this standard. The analysis of the various power modes of a design is enabled with a combination of the description of the power modes and the collection, generation, and propagation of switching information. Keywords: corruption semantics, interface specification, IP reuse, isolation, level-shifting, poweraware design, power intent, power domains, power modes, power states, progressive design refinement, retention, retention strategies.

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A method is provided for specifying power intent for an electronic design, for use in verification of the structure and behavior of the design in the context of a given power management architecture, and for driving implementation of that power management architecture. The method supports incremental refinement of power intent specifications required for IP-based design flows. (Thanks to our sponsor, the PDF of this standard is provided to the public no charge).

Low voltage integrated circuits.

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Guidelines for the specification of components, protection, and control of harmonic filters are provided in this guide. The guide applies to the use of 50 Hz and 60 Hz passive shunt power harmonic filters on low-voltage, medium-voltage, and high-voltage electric power systems. This document is specifically created for harmonic filters, although standards do exist for most of the components that are used in a filter. Applications including industrial low-voltage facilities, utility medium-voltage systems, and arc furnace installations are covered.

Low voltage integrated circuits.