Patent
Integrated electronic disconnecting circuits, methods, and systems
TLDR
In this article, a pass transistor (44) is placed so that upon a transient being applied to Input terminal (40), transistor's body potential drives the gate of a depletion-mode JFIET-type blocking transistor (71).Abstract:
Merged devices for transient blocking. A pass transistor (44) is placed so that upon a transient being applied to Input terminal (40), transistor (44)'s body potential drives the gate (81) of a depletion-mode JFIET-type blocking transistor (71). Simultaneously a potential difference VD is applied to external gate (52) in order to deplete channel (77). Thus a transient which appears on an external terminal is very rapidly propagated to deplete channels (77) and (85) thereby effectively disconnecting In terminal (40) from Out terminal (42) before damage can occur to a device connected to Out terminal (42). Once the transient subsides the device (37) resumes its normally conductive state.read more
Citations
More filters
Patent
Dc-dc converter with isolation
TL;DR: In this paper, a power converter comprises a direct current (DC)-DC converter configured to receive an input voltage in the primary domain, a transformer coupled to and driven by the DC-DC converter and supplying an output voltage in a secondary domain, and a transmission path configured to pass a digital feedback signal through an isolation barrier from the secondary domain to the main domain.
Patent
Partitioned Signal and Power Transfer Across an Isolation Barrier
TL;DR: In this article, a method for transferring power and information across an isolation barrier comprises transferring power across a power transfer isolation barrier between a primary circuit and a secondary circuit while maintaining isolation between the primary and secondary circuits, and transferring data between the powered system and the isolated system across a communication isolation barrier.
Patent
Signal communication across an isolation barrier
TL;DR: In this paper, a method for transmitting an information signal across an isolation barrier comprises receiving an input signal, preconditioning the input signal according to a modulation function, passing the preconditionaled signal through the isolation barrier, and recovering the passed signal using a demodulation function corresponding to the modulation function.
Patent
Driver IC with HV-isolation, especially hybrid electric vehicle motor drive concept
TL;DR: In this paper, an automotive drive system for a high voltage electric motor comprises a microcontroller and ECU powered by a low voltage (12 volt) bus net which controls the drives of a high volt or higher source, which, in turn, drives the motor.
Patent
Integrated transient blocking unit compatible with very high voltages
TL;DR: In this paper, a transient blocking unit (TBU) with integrated over-current protection and discrete over-voltage protection is presented, which is embodied as a unit for protecting a circuit from high voltage and high current.
References
More filters
Patent
Circuit protection device
TL;DR: In this article, a transient voltage surge suppression system incorporating a current protection device comprised of a voltage sensitive and a thermal sensitive device was proposed, where the voltage sensitive device has a predetermined voltage rating and increases in temperature as voltage applied to it exceeds its voltage rating.
Patent
Series current limiter
TL;DR: The field effect transistors are depletion type transistors and are interconnected in a manner to decrease conduction when an overvoltage or overcurrent condition is sensed as discussed by the authors, and bias resistors are used to maintain the transistors in a non-conductive state.
Patent
Two-pole overcurrent protection device
TL;DR: In this article, the Schottky diode is arranged adjacent to the cathode base layer and at such a distance therefrom that the barrier layer at the center junction of the thyristor penetrates into the diode and limits the voltage on the control means of the MOS transistor to a harmless value.
Patent
A protection device using field effect transistors
TL;DR: In this paper, a device which may protect circuits or equipment from overload or transients is described, which includes a unit (5) consisting of a p-channel FET and an n-channel fET connected with their conductive channels in series and each transistor coupled to the drain terminal of the other.
Patent
Overcurrent protective circuit and semiconductor device
TL;DR: In this paper, an enhancement MOS was proposed to suppress the overcurrent in a semiconductor overcurrent protection circuit, in which the source of an N-type depletion MOS (1) is connected to the source (2) through a resistor, and the gate of the P-type MOS is parallely connected through a rated value correcting circuit.