Patent application number | Description | Published |
20140139917 | MAGNETO-OPTIC SWITCH - Systems, methods, and apparatus for optical switching. In some implementations, a magneto-optic switch includes multiple optical components positioned in order along a light path including: a single optical fiber collimator, a first pair of refraction crystals, a first half wave plate assembly, refraction components, a second half wave plate assembly, a second pair of refraction crystals, and a dual fiber optic collimator, wherein a first side of the refraction components near the first half wave plate assembly includes a first Faraday effect element, a second side of the refraction components near the second half wave plate assembly includes an optic rotation assembly, the optic rotation assembly having a magnetic field generating component outside the first Faraday effect element. | 05-22-2014 |
20140139918 | MAGNETO-OPTIC SWITCH - Systems, methods, and apparatus for optical switching. In some implementations, a magneto-optic switch includes multiple optical components positioned in order along a light path including: a single fiber optical collimator, a first birefringent optic crystal, a first half wave plate assembly, a polarization rotation assembly, a second half wave plate assembly, a second birefringent optic crystal, and a dual fiber optic collimator, wherein a first side of the polarization rotation assembly near the first half wave plate assembly includes a first Faraday rotator element, a second side of the polarization rotation assembly near the second half wave plate assembly includes an optic rotation component, the polarization rotation assembly having a magnetic field generating component outside the first Faraday rotator element. | 05-22-2014 |
Patent application number | Description | Published |
20130258612 | DAUGHTER CIRCUIT BOARD FOR INTERFACE SIGNAL CONVERSION - A daughter circuit board of a brushless DC motor for interface signal conversion, having circuit units integrated on the daughter circuit and eight ports for communicating with a control system of a user terminal. The daughter circuit board is plugged into a motor controller for signal conversion so that the motor controller communicates with the control system of the user terminal. The eight ports include a signal input port of analog control, a signal port for activating a fan mode, signal ports of speed feedback, a reserved signal port, a port of COM, a port of DC power supply, and a R/T port. | 10-03-2013 |
20130288589 | METHOD FOR CONTROLLING AIR VOLUME OUTPUT - A method for controlling air volume including: 1) establishing a functional relation formula for air volume in a microprocessor control unit of a motor controller; 2) inputting a target air volume into the microprocessor control unit of the motor controller; 3) starting a motor by the motor controller under a torque to enable the motor to fall on a steady state; 4) recording the rotational speed in the steady state, and calculating an air volume in the steady state; 5) comparing the target air volume with the calculated air volume; 6) re-recording a steady rotational speed after the motor falls on a new steady state under an increased or reduced torque, and recalculating the air volume in the new steady state; and 7) repeating steps 5) and 6) to adjust the torque until the calculated air volume is equal or equivalent to the target air volume. | 10-31-2013 |
20130288590 | METHOD FOR CONTROLLING AIR VOLUME OUTPUT - A method for controlling air volume including: 1) establishing a functional relation formula for air volume in a microprocessor control unit of a motor controller; 2) inputting a target air volume into the microprocessor control unit; 3) starting a motor by the motor controller to enable the motor to achieve a rotational speed and fall on a steady state; 4) recording the torque and rotational speed in the steady state, and calculating an air volume in the steady state; 5) comparing the target air volume with the calculated air volume; 6) re-recording a steady torque after the motor falls on a new steady state under an increased or reduced rotational speed, and recalculating the air volume in the new steady state; and 7) repeating steps 5) and 6) to adjust the rotational speed until the calculated air volume is equal or equivalent to the target air volume. | 10-31-2013 |
20150061473 | DAUGHTER CIRCUIT BOARD OF ELECTRONICALLY COMMUTATED MOTOR HAVING INTERFACE SIGNAL CONVERSION FUNCTION - A daughter circuit board of an electronically commutated motor. The daughter circuit board has the function of interface signal conversion and can be plugged into a mother circuit board of a motor controller to match with an interface signal of a user end control system. The daughter circuit board includes an interface unit circuit. The interface unit circuit includes an RS485 interface circuit. The interface unit circuit is integrated on the daughter circuit board. | 03-05-2015 |