Abstract:
A control device for controlling current to a motor includes a current sensor connected to a power module for generating an electric signal corresponding to magnitude of the current to the motor, and a processor connected to first and second current detecting circuits, which are connected to the current sensor and the power module. The first current detecting circuit determines whether the current to the motor is larger than a first predetermined value, and generates a first flag signal provided to the power module. The second current detecting circuit determines whether the current to the motor is larger than a second predetermined value, which is larger than the first predetermined value, and generates a second flag signal provided to the power module. The power module inhibits connection between the motor and a power supply unit upon receiving either one of the first and second flag signals. The processor generates a first flag reset signal to the first current detecting circuit at a first reset frequency for resetting the first flag signal periodically, and a second flag reset signal to the second current detecting circuit at a second reset frequency for resetting the second flag signal periodically.
Abstract:
In a method and apparatus for controlling current limit of a motor of an electric-powered vehicle, the current limit of the motor is initially set to a smaller first value during start-up operation of the vehicle. Thereafter, in response to operation of a twist-grip throttle of the vehicle to commence accelerating operation of the vehicle subsequent to the start-up operation, the current limit of the motor is increased from the smaller first value to a larger second value larger than the smaller first value in accordance with angular rotation of the twist-grip throttle from an initial position. When the current limit reaches the larger second value, the current limit of the motor is then maintained at the larger second value in case of further operation of the twist-grip throttle from the initial position.
Abstract:
An interface apparatus having a rotational mechanism for connecting with an interface port in an electronic product is provided. The interface apparatus comprises a body, a connector and a rotational mechanism. The connector is used for connecting with the interface port of an electronic device. The rotational mechanism links up the body with the connector. The rotational mechanism has one to five degrees of freedom of movements. One or a multiple of rotational junctions together provides the degrees of freedom of movements in the rotational mechanism.
Abstract:
A non-volatile memory device with a built-in laser indicator. The non-volatile memory device includes a connective port, a buffer, a non-volatile memory unit, a memory controller, a battery and a laser indicator. The connective port connects electrically to a host machine. The host machine transfers data and provides power to the connective port through an external bus. The buffer holds the data transmitted to the connective port temporarily. The memory controller controls the transfer of data from the buffer into the non-volatile memory unit. The battery receives host power and stores up some host power to serve as backup power. The battery also provides the power for driving the laser indicator.
Abstract:
A non-volatile memory device with wireless control function which can be divided into two parts comprising a main part and a remote control part. The main part includes a connection port, a memory system and a remote control signal reception module, while the remote control part including a function-key module, a controller, a remote control signal emission module and a power storage unit. The function-key module produces a set of key signals while being pressed, and the controller produces a control signal corresponding to the set of key signals. The remote control signal emission module emits a remote control signal corresponding to the control signal. The remote control signal reception module produces a host control signal corresponding to the remote control signal, and the host control signal is transferred to the host via the connection port to control operations of the host. The power storage unit stores power which is provided to the remote control part while the remote control part is being used.
Abstract:
A back up power embodied non-volatile memory device including a connection port, a power supply unit and a memory system. A host machine provides data and power to the connection port through an external bus. The memory system holds the data received from the connection port temporarily and transfers the data to a non-volatile memory unit inside the memory system. The power supply unit provides necessary power to complete the transfer of temporarily stored data inside the memory system to the non-volatile memory unit to become readable data when host power suddenly fails.