Topic
Precision rectifier
About: Precision rectifier is a research topic. Over the lifetime, 4952 publications have been published within this topic receiving 63668 citations. The topic is also known as: super diode.
Papers published on a yearly basis
Papers
More filters
22 Jun 1997
TL;DR: In this paper, both peak current mode and average current mode control schemes are investigated as applied to a full bridge PWM converter with a two inductor rectifier, which is most suitable for high current applications.
Abstract: In this paper, both peak current mode and average current mode control schemes are investigated as applied to a full bridge PWM converter with a two inductor rectifier. The two inductor rectifier circuit offers reduced secondary side current rating and is most suitable for high current applications. With current mode control, the two inductor rectifier is modeled as two parallel connected buck converters.
34 citations
TL;DR: Low input current distortion, fast voltage-loop response, and improved dynamic response against line and load disturbances are demonstrated experimentally on a 300-W digitally controlled boost rectifier operating at a switching frequency of 100 kHz.
Abstract: A single-phase boost rectifier system with conventional low-bandwidth voltage loop exhibits poor dynamic response. A simple method is presented to improve the dynamic response of the rectifier without affecting its steady-state performance. A fast voltage controller is used to improve the dynamic response of the rectifier. The increased low-frequency ripple at the output of the voltage controller is filtered out using a new filter. Design methodology for the voltage loop is presented. The filter is simple enough for analog and digital implementations. Low input current distortion, fast voltage-loop response, and improved dynamic response against line and load disturbances are demonstrated experimentally on a 300-W digitally controlled boost rectifier operating at a switching frequency of 100 kHz.
34 citations
20 Jun 2004
TL;DR: In this paper, the authors proposed a line-side three-phase rectifier and a motor-side 3-phase inverter for regenerative drive converter, which consists of a line side 3-photon rectifier, three phase inductors and three capacitors.
Abstract: The presented regenerative drive converter consists of a line-side three-phase rectifier and a motor-side three-phase inverter. Antiparallel to the rectifier diodes there are six IGBTs, which conduct the DC link current, if it flows from the inverter to the rectifier. In the DC link there are no components: neither an inductor or an electrolytic capacitor nor a braking resistor or a braking chopper. Between the line and the rectifier there is a filter, comprising a three-phase inductor and three capacitors. As the antiparallel IGBTs are switched with line frequency, their switching pattern is very simple, because it is synchronized with the line voltage. Because of the low additional effort this converter type is very advantageous, when regenerative operation is expected and when low frequency harmonic content of the line current is not critical and does not require a converter with pulsed active front end. The proposed paper describes the basic function of this type of converter. It is shown, that the simple switching pattern for the line-side IGBTs can be generated very easily. The requirements for the line-side filter, its topology and its design are illustrated. A test set-up of this converter with an induction-motor of 7.5 kW is described and experimental results hereof are presented. The DC-link voltage is not ideal, but superimposed by the line-harmonics caused by the rectifier. The resulting influences for the motor can be minimized by means of the PWIV1 strategy of the motor-side inverter. The experimental results show, that the waveforms and the spectrum of the motor voltages and'currents and the waveforms and the spectrum of the line currents confirm the theoretical considerations. Measurements of the efficiency of the rectifier show, that its losses are low because of the absence of switching losses. The experimental results show as well, that additional losses of the motor due to the fluctuating DC link voltage are negligible.
34 citations
TL;DR: In this article, a circuit of a class E rectifier with a series capacitor was derived from a class e amplifier, using the symmetry between a DC-to-AC inverter and a rectifier.
Abstract: A circuit of a class E rectifier with a series capacitor is derived from a class E amplifier, using the symmetry between a DC-to-AC inverter and a rectifier. The principle of the circuit's operation is described and verified experimentally. Since the rectifier diode turns on and off at zero voltage, the switching losses are considerably reduced. In addition, the rectifier diode turns off at zero current, reducing the effect of the reverse-recovery time. The rectifier can be used in high-frequency high-efficiency resonant DC/DC power converters. >
33 citations
Patent•
21 Mar 2001
TL;DR: In this article, a flyback converter with synchronous rectifier was used to detect the secondary current of the transformer, which could improve the power efficiency of the power supply and avoid secondary current flows back.
Abstract: The present invention is related to a flyback converter with synchronous rectifier, and to use the current sensor coupled with the synchronous rectifier to detect the secondary current of the transformer. Using the secondary current, this invention could control the pulse width of the output signal from the synchronous rectifier to make the diode turn on in the same time with the synchronous switch. This invention could improve the power efficiency of the power supply and avoid the secondary current flows back, and simplify the circuit design to make the production much easier to cost down.
33 citations