Abstract: An electrical power transmission system includes an electric power transmitter for a wireless transmission of electric power in a confined space, and an electric power receiver to receive the transmitted electric power in the confined space and to transform the received electric power to power electric devices, wherein the system is configured to operate substantially free of exposure hazards. The electric power receiver may include a rectifier to rectify the receiver electric power, a storage device to store the rectified electric power, and a power controller to produce regulated outputs, wherein the electric power transmitter is configured to transmit electric power with a power flux corresponding to Federal Health Regulations. Some electric power receivers include a feedback transmitter to transmit a feedback signal to the electric power transmitter, wherein the electric power transmitter includes a feedback receiver, configured to receive the transmitted feedback signal from the electric power receiver.

Abstract: A power circuitry with a thermionic cooling system is provided. The system includes a voltage regulator and a heat rectifying device to cool the voltage regulator. The heat rectifying device includes a heat collector and a heat barrier, formed between the voltage regulator and the heat collector. An auxiliary voltage generator enables the electrons of the voltage regulator to tunnel onto the heat collector through the heat barrier. The voltage regulator may include a shared substrate and power transistors, generating a regulated voltage. In some embodiments the controller keeps a temperature in a preselected range by controlling the power transistors, the auxiliary voltage generator, and a fan. In some embodiments a load is integrated together with the thermionic cooling system so that the load itself can be cooled by the heat rectifying device.

Abstract: A power circuitry with a thermionic cooling system is provided. The system includes a voltage regulator and a heat rectifying device to cool the voltage regulator. The heat rectifying device includes a heat collector and a heat barrier, formed between the voltage regulator and the heat collector. An auxiliary voltage generator enables the electrons of the voltage regulator to tunnel onto the heat collector through the heat barrier. The voltage regulator may include a shared substrate and power transistors, generating a regulated voltage. In some embodiments the controller keeps a temperature in a preselected range by controlling the power transistors, the auxiliary voltage generator, and a fan. In some embodiments a load is integrated together with the thermionic cooling system so that the load itself can be cooled by the heat rectifying device.

Abstract: A linear regulator circuit includes an input terminal for receiving an input voltage and an output terminal for providing an output voltage. A pass device, coupled to the input terminal and the output terminal, generates an output current. A feedback circuit is coupled to the pass device and the output terminal. The feedback circuit increases the output voltage as the output current decreases and decreases the output voltage as the output current increases.

Abstract: A switching regulator having an active droop voltage generator that is responsive to a drain-to-source current of a current sense element within the switching regulator. A droop signal affects the duty cycle of a pulse-width modulated signal generated by control loop. The pulse width modulated signal is fed back to the input of the switching regulator to control the amount of droop. The droop voltage generator is programmable, having a selectable gain-setting resistor.

Abstract: A buck converter having a synchronous rectifier topology that performs current sensing at the low-side switch and employs "valley current control" to terminate a discharging phase and commence a charging phase of the converter. The buck converter is able to withstand high operating frequencies and low duty cycles to produce a low output voltage from a given high input voltage.

Abstract: A monolithically integratable signal amplifier stage with high output dynamics includes first, second, and third bipolar NPN transistors and first and second current mirror circuits. The collector terminal of the first transistor is connected to the positive terminal of a supply voltage generator. The base terminal of the first transistor is in input terminal of the amplifier stage. The base terminals of the second and third transistors are connected to the emitter terminal of the first transistor, which is connected via first constant current generator to the negative terminal of the supply voltage generator. The second and third transistors also have their emitters connected to the negative terminal of the supply voltage generator. The input of the first current mirror circuit and the output of the second current mirror circuit are connected to the collector terminals of the third and second transistors.

Abstract: The invention comprises an improved on-chip voltage regulator which provides output voltages significantly lower than the band gap voltage of silicon with supply voltages as low as 1.0 volt, with the output voltage fully temperature compensated.

Abstract: A transistorized bridge rectifier circuit with overcurrent protection which can be integrated monolithically is used for joining to a two-wire telephone line to the electronic circuits of a telephone subscriber set connected thereto. The circuit includes a transistorized bridge having a circuit arranged in the manner of a Graetz bridge. Rather than using separate elements for overcurrent protection, the circuit uses the bridge circuit elements themselves as protection elements. Diodes or diode connected transistors are respectively connected between the base and collector of transistors in two arms of the Graetz bridge and the resultant circuit thus provides overcurrent protection without the need of additional protection elements.