摘要:
A regulator circuit (10) includes an amplifier (61) having an input for sensing an output signal (VS, ILOAD) of the regulator circuit and an output (13) for producing a transient signal (ITR1, ITR2) in response to a change in the output signal. A feedback path (62, 67, 70) is coupled between the output and the input of the amplifier to set a gain of the amplifier to a first value when the output signal is constant and to a second value when the output signal changes. The feedback path includes a level shift circuit (62, 65) having an input (81) that receives the output signal and an output (83) that produces a level shifted signal for biasing the output of the amplifier to a predetermined level.
摘要:
A method and circuit for managing thermal performance of an integrated circuit. Temperature sensing circuits and a plurality of power FETs that are coupled together in parallel are manufactured from a semiconductor substrate. Each temperature sensing circuit monitors the temperature of the portion of the semiconductor substrate near or including a corresponding power FET. When the temperature of the semiconductor substrate near one or more of the power FETs reaches a predetermined value, the corresponding temperature sensing circuit reduces a voltage appearing on the gate of the power FET. The reduced voltage increases the on-resistance of the power FET and channels a portion of its current to others of the plurality of power FETs. The power FET continues operating but with a reduced current flow. When the temperature of the semiconductor substrate falls below the predetermined value, the gate voltage of the power FET is increased to its nominal value.
摘要:
An ice cream maker for making ice cream having a vessel, a motor being connected to a dasher in the vessel and a housing for housing the vessel and the motor. The housing has an inlet, an outlet and a valve at the outlet. When said valve is actuated, the ice cream is released from the vessel out of the outlet.
摘要:
A bar code reader having a reader module and a terminal module releasably connectable together for communication. Module components may be mounted on a glove to be worn by the user. One of a plurality of gripping portions is selected to provide a desired gripping mode for the reader.