Reversible current mirrors and their use in bidirectional communication
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A two-way communication and reverse current technology, which is applied in the direction of logic circuit coupling/interface, logic circuit, electrical components, etc. using field effect transistors, can solve problems such as contactors that are prone to errors
Active Publication Date: 2020-10-27
THYSSENKRUPP PRESTA AG +1
View PDF9 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
However, these contactors are prone to error due to the low voltage applied
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0019] exist figure 1 In , an electromechanical power steering device 1 is schematically shown having a steering shaft 2 connected to a steering wheel 3 intended to be operated by the driver. The steering rack bar 4 is connected in known manner to steered wheels 5 of the motor vehicle. The rotation of the steering shaft 2 causes an axial displacement of the steering rack 6 via the pinion 7 , which is connected to the steering shaft 2 in a torque-resistant manner. The electromechanical power steering system 1 has a motor housing 8 on the steering column side. The motor housing 8 is connected to a control unit 9 which, among other signals, receives a torque signal from a torque sensor 10 via a signal line 11 and sends a corresponding control signal via a signal line 12 to the arrangement Servomotor 13 in housing 8 . The control unit 9 itself receives an input signal, eg vehicle speed, via a supply line 14 . The servo motor 13 is a permanently excited synchronous motor. The ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention relates to a current mirror arrangement for duplex bidirectional communication between two circuit units (A, B), said arrangement comprising in each said circuit unit (A, B) two identical transistors (34, 34', 35, 35'), the bases (36, 37) of the transistors (34, 34', 35, 35') are connected together and the transistors (34, 34', 35 , 35') the base and the collector are respectively connected to each other, wherein each connection between the base and the collector is formed by a MOSFET (38, 39, 40, 41), and the two The MOSFETs (38, 39, 40, 41) of the circuit units (A, B) are connected together, wherein, the parasitic diodes of the MOSFETs (38, 39, 40, 41) of each circuit unit (A, B) arranged in the opposite direction with respect to the current system.
Description
technical field [0001] The invention relates to a current mirror device and an electromechanical motor vehicle power steering device. Background technique [0002] Electromechanical steering generally has an electric motor as a servomotor. A servomotor of this design is actuated by a control unit via groups of metal-oxide-semiconductor field-effect transistors (MOSFETs), wherein a total of six MOSFETs are provided for the three phase windings. Each MOSFET switches the assigned phase winding to either the vehicle supply voltage or ground potential. This switching occurs at a higher frequency so that the instantaneous average value is used as the effective voltage in the phase winding. For safety reasons it is known to separate the phase wires in the neutral point of the motor. The split takes place in the Motor Control Unit (MCU), which is controlled with appropriate information from the Electronic Control Unit (ECU). Signal lines are used to transmit this information and...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more