A new active clamping soft switching weinberg converter

An Integrated High-Power-Factor Converter With ZVS Transition

“…8 shows the theoretical curves of V dc and f s versus P o . Using (30) and (31), if the LED is dimmed from 100% to 30% rated power, the switching frequency would vary form 50 kHz to 167 kHz. The dc-link voltage and the output voltage vary form 360 V to 336 V and 216 V to 183.1 V. During the dimming operation, (13) and (26) are satisfied to ensure both converters operate at DCM.…”

“…Now that hard-switching operation has serious switching losses in the active switches, it prevents converters from using small magnetic components and capacitors by increasing the switching frequency. In order to solve the problem of hard switching, some soft-switching techniques which adopt active-clamp circuit or snubber circuit have been proposed [30][31][32][33][34][35][36]. These soft-switching techniques have substantially eliminated the switching loss.…”

An adaptable interleaved DC-DC boost converter

“…It was a step forward not only in satellite power regulation but in DC-DC converter technology in general because of it's simplicity. It became very widely known as simply the "Weinberg Converter" or "Weinberg Topology" in subsequent publications throughout the years [2][3][4][5][6][7][8][9].…”

“…It would appear from the comments that the intention was to reduce switching component stresses with no implications made towards using the circuit for boosting and no transfer function provided. In subsequent decades there have been adaptations to the classic Weinberg converter [2][3][4][5]9] with one most prominent being [2] where this development topology (Figure 1.41) is explored further for use in satellites at high power throughput. Here the topology is developed to achieve an efficiency of >95% at power throughputs of 500-1000W.…”

“…Weinberg in his 1974 publication [1] proposed a boost converter topology that does not seem to have been rigorously investigated.. Some adaptations exist [2][3][4][5][6][7][8][9] and an application using Weinberg's proposed topology is presented in [10] but no analysis seems to have been carried out.…”