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Performance and Reliability Improvements in High-Power Class D Audio Amplifier Design
Class D systems are quickly narrowing audio performance gap with simpler, more efficient designs offering fidelity that can surpass that of analog amplifiers. But with higher fidelity comes increased complexity. This in-depth Silicon Labs white paper explores how to improve the performance
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Wired 9.06: Best
railings in the opening sequence of Star Trek: Insurrection. Its amplifier puts out Dolby Digital 5.1 surround sound. The TV has only one set of component inputs; you'll have to invest in a pricey switcher if you need more. 34PW9815: $3,499.99. Philips Electronics: (800) 531 0039
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Wired 9.09: Best
audio amplifier, it works simply, and has few parts to break. Running at a reasonable 653 kWh per year, the stainless steel-clad dreadnought uses two separate compressors, so that frequent fridge visits don't dry out the air and cause freezer burn next door. This shallow, wide, 84-inch-high appliance
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Power OP Amps
incorporate a voltage-current limiter circuit to protect the amplifier from SOA damage such as a short to ground. The limiter senses both output current and voltage, and increases current limit value as output voltage approaches supply voltage. The circuit is activated by connecting a programming resistor
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Design Concepts for A 588 Channel Data Acquisition & Control System (.pdf)
daughter card is shown in Figure 4. The design includes the. following major sections: · Input Coupling (AC, DC, ICP 24V not shown). · Instrumentation amplifier for implementing full-scale auto-ranging in 1dB steps. · Analog anti-alias filtering. · 16 bit Sigma-Delta ADC. · Offset nulling circuitry
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Versatile and Rugged Data Acquisition for NVH
. 4/2-channel voltage input, ± 60 V, sampling rate 25.6 kHz/51.2 kHz (4/2-channel. mode), AC/DC coupling. ALO41. 4-channel output module,. sampling rate 25.6 kHz, max. 10 V. WSB41. 4-channel DMS module, AC/DC bridge amplifier, bridge configuration full, half or. quarter, sampling rate per channel 25.6
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MICRO:Product Technology News (Jan '99)
. PBC features 96% alumina, while thin-film processes contain 99.6% alumina. The process is particularly suited for making hybrid power amplifier circuits. The technology uses photolithography to produce well-defined patterns and fine lines of thick, pure copper with high thermal dissipation and size
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An Integrated Approach to the Dynamic Testing of Aerospace Structures
conditioners (e.g. an ICP1 and a charge amplifier type of input) can be connected to the same digitizer card.The architecture allows to distribute the frames around the aircraft. The transducers will be connected to these frames, and the frames themselves are connected to the workstation through a single