| 摘要 |
<p>A Full-Wave Bridge Rectifier (FWBR) input structure for use in an electrical system is delineated comprising, in combination, a pair of input nodes, and a pair of parasitic BJTs coupled in parallel with the pair of input nodes wherein each parasitic BJT has more than one collector. The input structure also includes an inductor and a capacitor connected in parallel across the pair of input nodes; however, one or more inductors, one or more capacitors, a transformer, or the like could be substituted. Each parasitic BJT also has a base coupled to ground through a resistor, a collector tied directly to ground, and another collector tied to a supply voltage VDD through a resistor. The area associated with each emitter is smaller than the area associated with their respective collector coupled to VDD. This arrangement of the parasitic BJTs assists in minimizing their gain in order to diminish their draw on a downstream power supply.</p> |
