摘要:
This disclosure relates to a semiconductor device including resistor arrangement including a first resistor electrically connected to a ground voltage and a second resistor in direct physical contact with the first resistor. The second resistor is configured to receive a temperature independent current and the second resistor has thermal properties similar to those of the first resistor. This disclosure also relates to a semiconductor device including a load configured to receive an operating voltage and a voltage source configured to supply the operating voltage. The semiconductor device further includes a resistor arrangement between the load and the voltage source. This disclosure also relates to a method of using a resistor arrangement to calculate an operating current.
摘要:
A DC to DC converter includes a switching circuit and a controller. The switching circuit includes an inductor coupled to first and second voltage supply nodes and to a plurality of output loads. The controller is configured to monitor a current through the inductor and to selectively couple the inductor to each of the plurality of output loads such that at least one of the following criteria is met: 1) an average current through the inductor is minimized for the particular output loads coupled to the switching circuit, or 2) minimize a number of times the switching circuit is switched during a charging period for the particular output loads coupled to the switching circuit.
摘要:
A DC to DC converter includes a switching circuit and a controller. The switching circuit includes an inductor coupled to first and second voltage supply nodes and to a plurality of output loads. The controller is configured to monitor a current through the inductor and to selectively couple the inductor to each of the plurality of output loads such that at least one of the following criteria is met: 1) an average current through the inductor is minimized for the particular output loads coupled to the switching circuit, or 2) minimize a number of times the switching circuit is switched during a charging period for the particular output loads coupled to the switching circuit.
摘要:
The present invention discloses a content protection system in a storage medium and the method of the same. The storage medium includes a flash disk, a memory card, a hard disk, a CDR, or a MO. In one aspect of the present invention, the content protection system in a storage medium includes a database; a partitioning module coupled to the database to partition the storage medium; and a link table managing module coupled to the database to establish and manage a link table of a file to be stored in the storage medium.
摘要:
A system and a method for controlling a sensorless motor are disclosed, where the system includes a motor driver and a zero-crossing detector. The motor driver can drive the sensorless motor. The zero-crossing detector can detect a zero-crossing point when the voltage of one motor coil of the sensorless motor is in a blanking period.
摘要:
A support mechanism is adapted to support an upper body of an electronic element, and the upper body can be turned pivotally relative to a lower body of the electronic device. The support mechanism includes a base, a plate, a transmission shaft and a torsional force generating device, in which the base is fixed on the lower body and the plate is fixed on the upper body. Furthermore, the transmission shaft is passed through and installed on the base and the torsional force generating device is wound around the transmission shaft. One end of the torsional force generating device is extended outward and fixed on the plate so as to couple the base to the plate and process a pivotal turn.
摘要:
A support mechanism is adapted to support an upper body of an electronic element, and the upper body can be turned pivotally relative to a lower body of the electronic device. The support mechanism includes a base, a plate, a transmission shaft and a torsional force generating device, in which the base is fixed on the lower body and the plate is fixed on the upper body. Furthermore, the transmission shaft is passed through and installed on the base and the torsional force generating device is wound around the transmission shaft. One end of the torsional force generating device is extended outward and fixed on the plate so as to couple the base to the plate and process a pivotal turn.
摘要:
A reference voltage generator includes a first current source, an output current mirror, an output device, and a shunt device. The first current source generates a first current and has a first temperature coefficient. The output current mirror mirrors the first current and generates a second current in response to the first current. The output device provides a reference voltage in response to the second current. The shunt device has a second temperature coefficient that is complementary to the first temperature coefficient, and is operatively coupled in parallel with the output device.
摘要:
The oscillating signal generator utilizes a rising edge phase difference and a falling edge phase difference of the input signal and a feedback signal to generate a rising control signal and a falling control signal, and generates an output signal according to the rising control signal and the falling control signal; wherein the feedback signal corresponds to the output signal.
摘要:
A power-on reset circuit includes a Schmitt trigger circuit, a voltage divider, and a compensate circuit. The Schmitt trigger circuit includes a plurality of MOS devices of a uniform threshold voltage (Vt) for determining a power reset trigger level. The voltage divider is coupled to an input of the Schmitt trigger circuit for tracking the supply signal. The compensate circuit is operative to generate a small reset pulse to compensate for temperature and the supply signal variation effect.