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An increased damping resistor (IDR) replaces high-order loop filter to simply reduce the total harmonic distortion (THD) of Class-D audio amplifier. Besides, cross offset cancellation (COC) technique minimizes the system offset voltage to avoid dc current flows to the speaker in the bridge tied load (BTL) structure. Furthermore, variable switching frequency characteristic in self-oscillating modulation...
To cope with monolithic controller replicas and the current unbalance situation in multiphase converters, a pseudo-ramp current balance technique is proposed to achieve time-multiplexing current balance in voltage-mode multiphase DC–DC buck converter. With only one modulation controller, silicon area and power consumption caused by the replicas of controller can be reduced significantly. Current balance...
Fiber-reinforced materials have been widely used in the engineering field, and the toughness-reinforced problems of them had been paid greatly attentions by many researchers. So there are important meanings and vast engineering backgrounds to study these problems. Just based on above purpose, this paper makes following jobs. Firstly, using elasticity theory, fracture mechanics and composite materials...
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