Integrated Critical Mode PFC / Quasi-Resonant Current Mode PWM Controller

This application note presents practical step-by-step design considerations for power supply system employing Fairchild’s FAN6921 PFC/PWM combination controller, which combines a Boundary Conduction Mode (BCM) Power Factor Correction (PFC) controller and QuasiResonant (QR) PWM controller. Figure 1

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FAIRCHILD

仙童半导体

Simple Drive Requirement, Easy for Synchronous Buck Converter Application

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A-POWER

富鼎先进电子

Dual-Channel Low Noise Amplifier 10.7 ??12.75 GHz

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RENESAS

瑞萨

Dual-Channel Low Noise Amplifier 10.7 – 12.75 GHz

Features ■ Frequency: 10.7 – 12.75 GHz ■ Gain: 19.5dB ■ Noise Figure: 1.4dB ■ Output P1dB: -7dBm ■ Power Consumption: 12.5mW/ch ■ Channel Isolation: 37dB minimum ■ Supply Voltage: 0.9 – 1.0V ■ Common bias control input ■ Compact size for planar integration on λ/2 grid ■ 2.7 × 2.7 × 0.9 m

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RENESAS

瑞萨