Abstract: A circuit is configured to generate a first switching signal and a second switching signal. During a first portion of a first switching period, both the first switching signal and the second switching signal indicate to turn-on and turn-off. During a second portion of the first switching period, the first switching signal indicates to turn-on and the second switching signal indicates to turn-off. In response to a determination that a measurement time threshold exceeds the first switching period, the circuit is configured to generate a first adapted switching signal that extends the turn-on portion by a time value in the first switching period and to generate a second adapted switching signal that extends the turn-on time by the time value in a second switching period. The circuit is further configured to control switching circuitry using the first adapted switching signal and the second adapted switching signal to operate a motor.

Abstract: A circuit for controlling a motor that includes control circuitry configured to generate, for a phase of the motor, a switching signal indicating to couple the phase to a first terminal of a supply for an entire portion of each switching cycle of a first plurality of switching cycles corresponding to a first range of electrical angles for the rotor and to couple the phase to a second terminal of the supply for a portion of each switching cycle of a second plurality of switching cycles corresponding to a second range of electrical angles for the rotor. The control circuitry is further configured to control the motor based on the switching signal.

Abstract: A circuit for controlling a motor that includes control circuitry configured to generate, for a phase of the motor, a switching signal indicating to couple the phase to a first terminal of a supply for an entire portion of each switching cycle of a first plurality of switching cycles corresponding to a first range of electrical angles for the rotor and to couple the phase to a second terminal of the supply for a portion of each switching cycle of a second plurality of switching cycles corresponding to a second range of electrical angles for the rotor. The control circuitry is further configured to control the motor based on the switching signal.

Abstract: A lifting device is configured to support a bridge cap when lifting the cap onto columns under a bridge deck. The lifting device includes an upper bracket arm configured to extend over an upper surface of the deck, and a lower bracket arm configured to extend under a bottom surface of the deck, and to selectively engage the cap. A side bracket portion connects the lower and upper arms, and is configured to transmit a force associated with a weight of the cap to the upper arm. The upper and lower arms and the side bracket portion are configured to define an open space extending from free ends of the upper and lower arms to the side bracket portion. The space is configured to receive the deck when the lifting device is supporting the cap as the cap is being lifted onto the columns.

Abstract: A lifting device is configured to support a bridge cap when lifting the cap onto columns under a bridge deck. The lifting device includes an upper bracket arm configured to extend over an upper surface of the deck, and a lower bracket arm configured to extend under a bottom surface of the deck, and to selectively engage the cap at opposite ends of the cap. A side bracket portion connects the lower and upper arms, and is configured to transmit a force associated with a weight of the cap to the upper arm. The upper and lower arms and the side bracket portion are configured to define an open space extending from free ends of the upper and lower arms to the side bracket portion. The space is configured to receive the deck when the lifting device is supporting the cap as the cap is being lifted onto the columns.

Abstract: A lifting device is configured to support a bridge cap when lifting the cap onto columns under a bridge deck. The lifting device includes an upper bracket arm configured to extend over an upper surface of the deck, and a lower bracket arm configured to extend under a bottom surface of the deck, and to selectively engage the cap at opposite ends of the cap. A side bracket portion connects the lower and upper arms, and is configured to transmit a force associated with a weight of the cap to the upper arm. The upper and lower arms and the side bracket portion are configured to define an open space extending from free ends of the upper and lower arms to the side bracket portion. The space is configured to receive the deck when the lifting device is supporting the cap as the cap is being lifted onto the columns.

Abstract: A lifting device is configured to support a bridge cap when lifting the cap onto columns under a bridge deck. The lifting device includes an upper bracket arm configured to extend over an upper surface of the deck, and a lower bracket arm configured to extend under a bottom surface of the deck, and to selectively engage the cap at opposite ends of the cap. A side bracket portion connects the lower and upper arms, and is configured to transmit a force associated with a weight of the cap to the upper arm. The upper and lower arms and the side bracket portion are configured to define an open space extending from free ends of the upper and lower arms to the side bracket portion. The space is configured to receive the deck when the lifting device is supporting the cap as the cap is being lifted onto the columns.