voltage controlled oscillator

Voltage controlled oscillator

Crystek (distributed in Australia by Farnell) has released the CVCO55CC-2594-3026 Voltage Controlled Oscillator (VCO). The device operates from 2594 to 3026 MHz with a control voltage range of 0.1 to 16 V. External Source

Electronic ballast circuits enhance resonant-mode power supplies

This article explains the basic functionality of a typical electronic ballast circuit, highlights the similarities between the two applications, and describes a typical resonant-mode power-supply solution using a standard electronic ballast control IC. ... External Source

Resonant controller

Fairchild Semiconductor (distributed in Australia by Farnell) has announced the FAN7621, a resonant controller. External Source

CMOS-NAND gates control sump pump

A similar circuit lets you control both the sump pump and the water level. External Source

Twin-T power oscillators work as dc-biased ac sources

Using a frequency-selective twin-T network and the LT3080 linear regulator, you can achieve a low-distortion twin-T oscillator with power-driving capability. External Source

Isolated clock source acts as test generator

A cost-effective approach to implementing an isolated clock source uses a high-speed optocoupler with low input-to-output capacitance. External Source

Managing high-voltage lithium-ion batteries in HEVs

Skyrocketing energy prices and the growing concern over carbon emissions have focused attention on electric and hybrid-electric vehicles. New lithium-battery designs will be key technologies for efficient EVs and HEVs. External Source

Simple two-transistor circuit lights LEDs

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Lattice launches midrange FPGAs at cellular and access networks

Lattice's ECP3 family begins to look almost application-specific in its details. External Source

Texas Instruments announces dual 14-bit, 250-Msample/sec AD

Texas Instruments has introduced a dual 14-bit, 250-Msample/sec ADC that combines high performance with low power consumption. External Source

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