In this article, a current-sharing method for interleaved high-frequency LLC converter with partial energy phase shift regulation is presented. An auxiliary low-power added in each phase, which able to achieve natural current sharing and the zero-voltage switching (ZVS) operation circuit. Meanwhile, perfect between phases achieved by controlling angle bridge bridge. Only processed converter; hence, power losses of converters are minimized, overall high efficiency maintained. By transforming...

In this article, a dual active bridge (DAB)-LLC-DCX dc-dc converter with integrated magnetics and shared rectifier is proposed for point of load applications, which able to achieve tight voltage regulation, zero-voltage switching (ZVS) operation all switches zero-current rectifier. The challenge the realization ZVS within full power range high efficiency reliability, beneficial light improvement microprocessors. Therefore, different input range, hybrid control strategy realize in article....

To realize a soft-switching inverter with small volume and high efficiency, synchronous auxiliary resonant commutated pole (SARCP) improved load adaptability is proposed, which only contains two inductors. In one switching cycle, all commutation processes can be synchronously assisted by an inductor. Soft achievable for switches of the SARCP inverter. Compared (ARCP) inverter, has adaptability, especially in light current condition, beneficial to reduce total power loss dc-link capacitance....

The dc power distribution has become a promising solution to powering datacenters, which can reduce conversion steps and total losses. However, both of the two most options, 380 V 48 distributions, have their own defects that cannot be ignored, such as distributions lower reliability efficiency. In this article, three-port <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">LCC</i> resonant converter is proposed eliminate above-mentioned by...

In order to design a high-efficiency, cost-effective, high-power on-board vehicle battery charger for supplying electric vehicles, novel bridgeless, soft switched integrated AC-DC converter is proposed. The proposed can realize the ZVS operation of power factor correction (PFC) circuit's switches by sharing MOSFET PFC circuit and full-bridge LLC resonant converter. Different from previous quasi-single-stage [7] - [12], topology's stable output voltage bus be simultaneously independently...

In this paper, a digital adaptive voltage positioning (digital AVP) technique with fast transient response for 48-1V ISOP-LLC converter is proposed, which featured improving the dynamic performance of LLC and reducing system complexity. The proposed control architecture operates Bang–Bang Charge Control (BBCC). AVP concept applied into resonant converter, while satisfying output regulation better performance. Two digital-to-analog converters (DACs) are used instead analog-to-digital (ADCs),...

The bootstrap gate driver circuits are widely used for bridge-arm-type high-current and high-power-density converters due to their low cost compact structures. In applications, improper parameters circuit design will cause start-up gate–source voltage oscillation, bridge-arm shoot-through, overshoot. Because of the lack research detailed model on above three aspects in this article proposes a full-parameter through analysis summarizes set systematic methods, which provides reference Si-based...

This article proposes a dual-input mismatch power processing <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">LLC</i> converter for microinverter application. The proposed has two photovoltaic (PV) input interfaces in series, so that when the of PV panels is mismatched, still good working conditions. dual control pulsewidth modulation and pulse frequency achieves independent flow ports to eliminate impact mismatched power. In addition, through...

In order to reduce the number of auxiliary inductors and improve load adaptability resonant commutation pole soft-switching inverter(ARCP) inverter, a novel inverter is proposed, which characterized by simple structure low power loss. The proposed only contains two inductors. And processes two-phase main switches are simultaneously assisted same inductor. All in can achieve zero voltage switching, all current switching. has simpler structure, higher efficiency better than ARCP inverter....

We describe a digital teraohmmeter achieving state-of-the-art linearity, stability, and accuracy. Proper shielding, guarding, measurement reproducibility having been addressed by hardware design, the instrument employs automatic self-checking circuits routines to help maintain linearity of 50 ppm when working over 10/sup 6/-10/sup 12/ /spl Omega/ in resistance, 1-1000 V test voltage, 1 pA-1 mu/A current. It can measure high-resistance standards up 15/ with standard uncertainty not exceeding...

In this article, an integrated flying capacitor three-level dc/dc converter with mismatch power processing capability is proposed. The proposed has two photovoltaic input interfaces in series and can provide additional current path for PV modules to eliminate mismatched power. Through the capacitor, voltage stress of all primary switches reduced. Furthermore, a active balancing control strategy balance switches. By adjusting time when main flows through compensate effect on be controlled...

The wide band-gap (WBG) devices have received widespread attention due to their excellent characteristics like low on-resistance, fast switching speed and better thermal conductivity. However, the crosstalk problem restricts performance of high-speed WBG transistors in bridge-leg converters. What's more, high current converters, will become more severe. To overcome converters fulfill devices' potentials, a simple positive negative mitigation method is presented this article. This does not...