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This paper proposes a Class D current-source resonant boost converter, which is controlled with the 1-bit delta-sigma modulator. The 1-bit delta-sigma modulator, which is an analog to digital (A/D) converter for digital audio amplifiers, generates a 1-bit (1/0) signal based on the input signal. This `periodical' output signal has an advantage in driving resonant converters. Class D voltage-source...
This paper presents a novel resonant dc-dc converter using Z-source impedance network. The conventional series resonant converter suffers from efficiency degradation problem when the input voltage range is wide because the switching frequency of converter should be increased far away from resonant frequency to control output voltage. The proposed Z-source resonant dc-dc converter can minimize switching...
Feedback sensor isolation is often an expensive necessity in power converters, for reasons of safety and electromagnetic compatibility. A disturbance observer-based control strategy for a dual-output resonant converter is proposed to overcome this problem. Current control of two LED loads is achieved through estimation rather than measurement. Robustness against temperature changes, which have significant...
A control scheme is presented for a high voltage output power supply based on an LCC resonant converter which exploits the flexibility of digital methods to attain high performance with simple algorithms. The control scheme uses voltage and current control operating modes; the interaction of these modes is analytically investigated. Optimally fast capacitor charging is attained by charging up using...
This paper proposes to apply the 1-bit delta-sigma modulator to a series resonant converter. The 1-bit delta-sigma modulator, which is an analog to digital (A/D) converter, outputs a 1-bit (1/0) signal based on the analog input signal. This technology has been applied to digital audio amplifiers in the markets. These days, the delta-sigma modulation is also applied to switching power converters instead...
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