摘要:
A RC oscillator (301) comprises a resistor unit (310). The resistor unit (310) can comprise at least one set of compensation resistor (312). Each set of compensation resistor (312) comprises a positive temperature coefficient resistor (Rl) and a negative temperature coefficient resistor (R2) coupled in series with the positive temperature coefficient resistor (Rl).
摘要:
A motor-driven integrated circuit (10) can include a bare die having an 8-bit microcontroller (115). The 8-bit microcontroller (115) is fabricated by a 0.15µm semiconductor process.
摘要:
A motor assembly, an integrated circuit and an application device including the motor assembly are provided. The motor assembly includes a motor (100) and a motor driving circuit (200), the motor driving circuit (200) includes a step down circuit (10), and the step down circuit (10) includes a first current branch and a second current branch which are turned on selectively. The step down circuit can be integrated in an application specific integrated circuit to reduce the complexity and cost of the circuit.
摘要:
A magnetic sensor integrated circuit (400) and a motor assembly are provided. The integrated circuit includes a housing (2), a semiconductor substrate arranged in the housing, at least one input port (A1, A2) and an output port (Pout), and an electronic circuit arranged on the semiconductor substrate. The electronic circuit includes a rectifying circuit (60), a magnetic field detection circuit (20) configured to detect an external magnetic field and output magnetic field detection information, and an output control circuit (20) connected to the rectifying circuit (60) and configured to control, at least based on the magnetic field detection information, the integrated circuit to operate in at least one of a first state in which a load current flows from the output port (Pout) to an outside of the integrated circuit and a second state in which a load current flows from the outside of the integrated circuit to the output port (Pout). The load current flows through the rectifying circuit (60).
摘要:
A RC oscillator (301) comprises a resistor unit (310). The resistor unit (310) can comprise at least one set of compensation resistor (312). Each set of compensation resistor (312) comprises a positive temperature coefficient resistor (Rl) and a negative temperature coefficient resistor (R2) coupled in series with the positive temperature coefficient resistor (Rl).
摘要:
A motor-driven integrated circuit (10) comprises a PWM output unit (125) and an overcurrent comparator (180) coupled with the PWM output unit (125). The overcurrent comparator (180) receives a detection signal and compares the detection signal with a reference value. When the detection signal is larger than the reference value, the overcurrent comparator (180) outputs an overcurrent protection signal to control the PWM output unit (125) enter an overcurrent protection mode.
摘要:
A motor-driver integrated circuit comprises a plurality of position comparators (190), a timer (150) and a central processing unit (115). Each of the plurality of position comparators (190) receives a pole detection signal denoted a position of a rotor of a motor. The timer (150) receives a timing interrupt signal by the plurality of position comparators (190) when a predetermined edge of the pole detection signal is generated and records a time of the predetermined edge. The central processing unit (115) obtains a rotation speed of the motor according to a time difference between two predetermined edges.
摘要:
The present teaching relates to a magnetic sensor (1105) including an input port (1102, 1104) and an output port (1106) and an electrical circuit (1100) which includes a magnetic field detecting circuit (1130), an output control circuit (1120), a state control circuit (1140) coupled with the output control circuit (1120) and configured to determine whether a predetermined condition is satisfied and signal the same to the output control circuit (1120). When the predetermined condition is satisfied, the state control circuit (1140) is at least responsive to the magnetic induction signal to enable the output control circuit (1120) to control the magnetic sensor to operate in at least one of a first state and a second state. In the first state, a load current flows in a first direction from the output port (1106) to outside of the magnetic sensor. In the second state, a load current flows in a second direction opposite of the first direction from outside of the magnetic sensor into the magnetic sensor via the output port (1106). When the predetermined condition is not satisfied, the state control circuit (1140) enables the output control circuit (1120) to control the magnetic sensor to operate in a third state.
摘要:
A motor-driven integrated circuit (10) comprises a multiple-time programmable memory (120) to store a motor driven program, a memory (130) having a capacity larger than or equal to a capacity of the multiple-time programmable memory (120), and a central processing unit (115). When the motor-driven integrated circuit (10) is powered or reset, the central processing unit (115) copies the driven program from the multiple-time programmable memory (120) to the memory (130).
摘要:
A motor assembly, an integrated circuit and an application device including the motor assembly are provided. The motor assembly includes a motor (100) and a motor driving circuit (200), the motor driving circuit (200) includes a step down circuit (10), and the step down circuit (10) includes a first current branch and a second current branch which are turned on selectively. The step down circuit can be integrated in an application specific integrated circuit to reduce the complexity and cost of the circuit.