摘要:
The present invention comprises a method and apparatus for controlling an IGBT device. The method comprises, upon receipt of a first and at least one further IGBT control signals, the first IGBT control signal indicating a required change in operating state of the IGBT device, controlling an IGBT driver module for the IGBT device to change an operating state of the IGBT device by applying a first logical state modulation at an input of an IGBT coupling channel, and applying at least one further modulation to the logical state at the input of the IGBT coupling channel in accordance with the at least one further IGBT control signal within a time period from the first logical state modulation, the time period being less than a state change reaction period ∆t for the at least one IGBT device.
摘要:
A bilateral switch derives internal power for the operation of the switch control circuitry from a converter powered by the input signal, whether the input is AC or DC, and also operates the internal voltage isolated circuits powered by this from the input signal. The internal circuitry operates a pair of similar FET switches switching power on and off between their drain connections, relying on a reverse protection diode across the FETs to allow passage of either AC current or DC current in either direction.
摘要:
Controlling power switches with a programmable gate controller system proximate associated power switches and remote from the central controller including sensing at least one predetermined condition local to the associated power switches; reporting the sensed conditions to the remote programmable gate controller system; developing, in response to the sensed condition at least one control signal in the remote programmable gate controller system; and applying the control signal to the associated power switches
摘要:
A gate driver circuit (400) for controlling a semiconductor electronic device module, such as a power switching module (12), 14is discussed. The system comprises an optical fibre (418) mounted inside the power module and connected to a controller (414) located on the gate driver circuit (400). The optical fibre (418) is arranged so that it lies proximate to one or more semiconductor dies (304, 306) in the semiconductor device module (12, 14) to sense an operating condition, such as temperature, strain or current. The optical fibre sensor may operate using one or more Fibre Bragg Gratings written into the fibre, or via interferometry techniques.
摘要:
Solid state power controllers are described that include a switch controlled by a microcontroller and communication contacts. In one aspect of the invention, the microcontroller is galvanically isolated from the communication contacts using magnetoresistive isolation. In another aspect of the invention a number of solid state power controllers are connected to an external microcontroller to form a power distribution array. In addition, messages exchanged between the external microcontroller and the solid state power controllers can be used to configure the solid state power controllers and provide a user interface.
摘要:
A system is presented for latching and amplifying a capacitively coupled inter-chip communication signal that operates by receiving an input signal on a capacitive receiver pad and feeding the input signal through an inverter to produce an output signal. The output signal is fed back through a weakened inverter to produce a feedback signal that is fed into an input of the inverter to form a latch for the input signal. The weakened inverter is biased to produce a feedback signal that swings between a high bias voltage, VH, and a low bias voltage, VL. VH is set slightly higher than the switching threshold of the inverter, and VL is set slightly lower than the switching threshold. This feedback signal causes the input signal to reside within a narrow voltage range near the switching threshold of the inverter, making the inverter sensitive to small transitions in the input signal.
摘要:
At least one high voltage rated isolation capacitor is formed on a face of a primary integrated circuit die. The isolation capacitor AC couples the primary integrated circuit in a first voltage domain to a second integrated circuit in a second voltage domain. The isolation capacitor DC isolates the primary integrated circuit from the second integrated circuit die.