Stabilised power MOS-bipolar modules

Cost-effective solar-powered solid-state driver circuit for continuous microwave millimetre-wave IMPATT diode control

“…Every input voltage noise results in large current fluctuations. The circuit shown in figure 2(b) is able to compensate for these entire phenomena, as discussed in our earlier publications [1,4,6,8,10]. A comprehensive comparative study and circuit analysis of the difference in power consumption between the Darlington configuration and the MOS-bipolar split-Darlington module can be found in [6,7].…”

“…The above technique (split-Darlington) can be extended to MOS-bipolar hybrid power devices, to ensure the feature of nearly constant current [10]. This has yielded a more costeffective and energy-efficient control circuit than conventional current-limited power supplies, which also eliminates the danger of their slow response to destructive current transients.…”

“…Figure 2 shows the circuit adapted from [1,10]. The stabilization is provided by feedback from the bipolar emitter.…”

“…The split-Darling circuit, developed and patented by Lazarus and Rabah [6] with follow-up work by Rabah [7,8], is rugged, reliable and highly flexible. It has many salient features, which make it quite easily adaptable for pulsing and cw operations microwave diodes [1,7].…”

“…Bipolar devices are, of course, fundamentally temperature dependent, and it is therefore highly desirable to extend the methods already used to compensate for the self-heating effects in IGBTs and MOSFETs [4,10] to MOS-bipolar devices. In the following sections, we concentrate on the low-voltage solid-state power transistor for cw mm-wave transmitter.…”