For this application, we are not able to design the converter working at this resonant frequency. LLC resonant converter existed for a very long time but because of unknown characteristic of this converter it was used as a series resonant converter with basically a passive (resistive) load. . ...
There are basically two conventional resonant converter control methods. The more common of the two is switching frequency control. The problem with switching frequency control is that, at light loads, output voltage control can only be maintained if the switching frequency is increased to very high...
In these converters the MOSFETs of the half bridge leg are alternately switched on and off (180° out-of-phase) for exactly the same time. This is commonly referred to as symmetrical operation at "50% duty cycle", although the real duty cycle, i.e. the ratio of the ON-time of ...
In these converters the switches (MOSFETs) of the half bridge leg are alternately switched on and off (180° out-of-phase) for exactly the same time. This is commonly referred to as operation at "50% duty cycle", although the real duty cycle, that is the ratio of the ON-time of ...
1984 and entitled "Optimal Resetting Of The Transformer's Core In Single Ended Forward Converters". This reference discloses a reset circuit in which a capacitor and an auxiliary transistor switch are connected in series. This series connection is in turn connected in parallel with the power trans...
In these converters the MOSFETs of the half bridge leg are alternately switched on and off (180° out-of-phase) for exactly the same time. This is commonly referred to as symmetrical operation at "50% duty cycle", although the real duty cycle, i.e. the ratio of the ON-time of ...
The signals output by the envelope detector circuit 30 are digitized by use of analog-to-digital (A/D) converters 32. Each trace of the sensor 14 may have a dedicated A/D converter 32. Alternatively, two or more traces may share a common A/D converter 32 via a switch having a ...
direct current convertersresonant converterfrequency controlbidirectional power flowThis paper studied a bidirectional frequency-control dc converter with magnetic-coupling to achieve 1) current balance on low voltage side, 2) low switching losses on power devices, and 3) bidirectional power transfer ...
converters PFC controller features – Enhanced constant on-time PFC with input voltage feedforward, THD optimizer – Complete set of protections: ac brown- in/out, inrush control, OVP, OCP, inductor saturation, feedback disconnection LLC controller features – Proprietary timeshift control...
It can enable bidirectional power transmission, but it is difficult to realize a normalized gain greater than one under backward mode (backward step-up mode). Cascaded dc/dc converters or topological changes can solve this problem, but additional switches and components are required and losses are...