Abstract: Shielding performance and protection from radiated RF energy at a cable's point of entry to an enclosure are improved when a shield of the cable is AC coupled around an entire opening of the enclosure using a discoidal capacitor. The capacitor may be electrically coupled to the shield and the enclosure around the entire inner and outer circumferences of the discoidal capacitor. Compared to traditional DC coupling or the use of a drain wire and traditional capacitor, using the discoidal capacitor lowers inductance and improves shielding of the opening itself while improving AC filtering characteristics and preventing ground loops.

Abstract: A bidirectional DC to DC converter having a first operational mode and a second operational mode includes a first terminal pair that has a positive terminal and a negative terminal and that connects the converter to a first electric circuit, a second terminal pair that has a positive terminal and a negative terminal and that connects the converter to a second electric circuit, an accumulation element for temporary accumulation of electric energy; and a switching circuit connected to the first terminal pair, the second terminal pair, and the accumulation element. Electric energy is transferred from the first electric circuit to the second electric circuit via the accumulation element in the first operational mode of the bidirectional DC to DC converter and, from the second electric circuit to the first electric circuit via the accumulation element in the second operational mode of the DC to DC converter.

Abstract: A method of scavenging power in a circuit having a power source generating electric current includes connecting a power scavenging device having an input terminal pair and an output terminal pair to the circuit via the input terminal pair, dynamically regulating a voltage drop across the input terminal pair of the power scavenging device, harvesting electrical energy available at the regulated voltage drop from the electric current flowing through the first input terminal pair of the power scavenging device, and providing the harvested electrical energy at the output terminal pair of the power scavenging device.

Abstract: A method of scavenging power in a circuit having a power source generating electric current includes connecting a power scavenging device having an input terminal pair and an output terminal pair to the circuit via the input terminal pair, dynamically regulating a voltage drop across the input terminal pair of the power scavenging device, harvesting electrical energy available at the regulated voltage drop from the electric current flowing through the first input terminal pair of the power scavenging device, and providing the harvested electrical energy at the output terminal pair of the power scavenging device.

Abstract: A bidirectional DC to DC converter having a first operational mode and a second operational mode includes a first terminal pair that has a positive terminal and a negative terminal and that connects the converter to a first electric circuit, a second terminal pair that has a positive terminal and a negative terminal and that connects the converter to a second electric circuit, an accumulation element for temporary accumulation of electric energy; and a switching circuit connected to the first terminal pair, the second terminal pair, and the accumulation element. Electric energy is transferred from the first electric circuit to the second electric circuit via the accumulation element in the first operational mode of the bidirectional DC to DC converter and, from the second electric circuit to the first electric circuit via the accumulation element in the second operational mode of the DC to DC converter.