| 摘要 |
PURPOSE:To save power consumption by connecting two switching diodes so that the polarity at a supplying side for switching diode driving current and the polarity at a receiving side for driving current is reversed to each other and the diodes can be driven in series at the connection of the diodes. CONSTITUTION:Switching diodes D1, D2 are connected so that their polarity is reversed to each other and the diode D1 is earthed by insulating its ground side at DC by a capacitor C3. If a connection point between the diode D1 and the capacitor C3 is regarded as a driving current supplying point, the driving current supplying point of the diode D1 is in low impedance and driving current to connect between the diodes D1, D2 is also made to flow from a DC power supply V3 into the ground through the diode D1, a stub 22, a main transmission line 21, a stub 23, and the diode D2, so that a high frequency choke can be omitted and the power consumption of these diodes is the same as that of one switching diode. Since the power consumption of said driving circuit is approximately proportional to that of the switching diodes, the power consumption is reduced sharply as compared to a parallel load circuit. |
