Patent classifications
H02H3/243
Smart cartridge wake up operation and data retention
A surgical instrument comprising an end effector, a firing member, a motor, and a control circuit is disclosed. The end effector comprises a first jaw, a second jaw movable relative to the first jaw to grasp tissue therebetween, a staple cartridge comprising staples, a first sensor at a first position of the end effector, and a second sensor at a second position of the end effector. The firing member is movable in a firing motion to deploy the staples. The motor is configured to cause the firing motion. The control circuit is configured to receive a first output of the first sensor, receive a second output of the second sensor, and cause the motor to adjust the firing motion based on the first and second outputs. The first output is indicative of a tissue property and the second output is indicative of the tissue property.
End effector including magnetic and impedance sensors
An end effector for use with a surgical stapling instrument is disclosed. The end effector comprises a first jaw, a second jaw movable relative to the first jaw to grasp tissue therebetween, and a staple cartridge. The staple cartridge comprises staples deployable into the tissue. The end effector further comprises a magnetic sensor configured to measure a parameter indicative of an identifying characteristic of the staple cartridge, an impedance sensor configured to measure a parameter indicative of an impedance of the tissue, and a processing unit in communication with the impedance sensor. The processing unit is configured to determine a property of the tissue based on an output of the impedance sensor.
Control of an electric circuit in a motor vehicle
A method (200) for operating an electrical vehicle circuit (115) of a motor vehicle (105) includes determining that a voltage of the vehicle circuit (115) drops below a predetermined threshold value while electric current from the vehicle circuit (115) flows through a consumer (130) on board the motor vehicle (105), lowering a voltage present at the consumer (130) in order to reduce the current flowing through the consumer (130), and successively raising the voltage present at the consumer (130).
Device for protecting an electronic computer against a short circuit
A device for protecting an electronic computer against a short circuit. The electronic computer including a shunt resistor, a first computer pin and being coupled to at least one sensor comprising a first sensor pin and a second sensor pin. Furthermore including a transistor driving module having a first driving pin coupled to a first shunt pin, a second driving pin coupled to a positive power supply, a second shunt pin being coupled firstly to a first sensor pin and secondly to a first comparator pin of a comparator module and designed to no longer supply electric power to the sensor through the first sensor pin when a short circuit is detected at the sensor.
SWITCH DEVICE
A switch device includes a switching element that connects/disconnects a current path from a power supply terminal to a ground terminal via a load, and an overcurrent protection circuit that limits output current flowing in the switching element to be an overcurrent limit value or less. When an output short circuit of the load is detected, the overcurrent protection circuit decreases the overcurrent limit value to be lower as a power supply voltage is higher. In addition, the switch device preferably includes a switching element that connects/disconnects a current path from a power supply terminal to a ground terminal via a load, an intermittent control unit that intermittently drives the switching element when an abnormality is detected, and an output voltage monitoring portion that disables the intermittent control unit until an output voltage applied to the load reaches its target value.
CONTROL CIRCUIT FOR ELECTRONIC SWITCHES
A method for operating an electronic switch is described hereinafter. According to one exemplary embodiment, the method (for an electronic switch in the switched on state) comprises detecting whether there is an undervoltage condition at a supply voltage node and providing an undervoltage signal which indicates an undervoltage condition. The method further comprises switching off the electronic switch if the undervoltage signal indicates an undervoltage condition and switching (back) on the electronic switch if the undervoltage signal no longer indicates an undervoltage condition. If the undervoltage signal indicates an undervoltage condition during a switch-on process of the electronic switch, the electronic switch is switched off again and switching back on is prevented for a defined period of time, irrespective of the undervoltage signal. Moreover, a corresponding circuit is described.
LOCAL DISPLAY OF TISSUE PARAMETER STABILIZATION
A staple cartridge for use with a surgical stapler and surgical stapling systems are disclosed. The staple cartridge comprises a cartridge body having a tissue-contacting surface. One or more light emitting diodes (LEDs) are positioned at the edges of the tissue-contacting surface. A plurality of staple drivers is located within the cartridge body each supporting a staple.
SYSTEMS AND METHODS FOR GATE DRIVER WITH FIELD-ADJUSTABLE UVLO
Systems and methods for gate driver with field-adjustable undervoltage lockout (UVLO) are disclosed. A gate driver system comprises a control circuit and a driver circuit. The driver circuit incorporates a field-adjustable UVLO, a control logic, and an inverter. The level of the field-adjustable UVLO is adjustable by an external circuit, which can be a resistor based voltage divider. By setting the UVLO level externally adjustable and by moving a reference ground to the external voltage divider, the gate driver system is able to implement gate control for various load without needing extra ground pin.
Circuit for actively performing short-circuit and motor controller
A circuit for actively performing short-circuit and a motor controller are provided. The circuit includes an undervoltage detecting circuit, an emergency power supply, a reverse-flow preventing circuit, and a gate level selecting switch. The undervoltage detecting circuit is configured to detect a driving power supply signal outputted from the driving power supply and output, in a case that an amplitude of the driving power supply signal is lower than a first threshold, an emergency active short-circuit enable signal. In response to the emergency active short-circuit enable signal, the emergency power supply is enabled and the gate level selecting switch is controlled to switch from a first conduction path to a second conduction path, to transmit an emergency power supply signal outputted from the emergency power supply to a bridge arm via the second conduction path.
METHOD FOR CONTROLLING A POWER-DOWN DETECTION CIRCUIT, CONTROLLER AND COMPUTER READABLE STORAGE MEDIA
The present application provides a method for controlling a power-down detection circuit, a controller and a computer readable storage medium. The method includes: receiving, by a controller of a power-down detection circuit, a power-down signal, wherein the power-down signal is sent from a power-down detection sub-circuit of the power-down detection circuit when it is determined by the power-down detection sub-circuit that an output voltage of a low-voltage side power supply of the power-down detection circuit is smaller than a threshold, and wherein the power-down detection sub-circuit and the controller are powered by the low-voltage side power supply; controlling, by the controller, a memory of the power-down detection circuit to record fault information, wherein the fault information comprises current information of a high voltage bus sensed by a high-voltage side current sensor of the power-down detection circuit; and performing, by the controller, a fault diagnosis based on the fault information.