hybrid rectifier
A mixed rectification and rectifier technology, which is applied in the directions of only measuring current, converting DC power input to DC power output, and converting AC power input to DC power output, etc., which can solve the low efficiency of active rectifiers and the high cost associated with active rectifiers , expensive and other issues
Active Publication Date: 2021-07-27
伊玛罗格股份有限公司
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, active rectifiers have higher associated costs than diode rectifiers because the transistors used must be able to conduct relatively high currents, making them more expensive
[0007] Also, active rectifiers typically have low efficiency at partial load due to the constant switching of the transistors, which creates losses even when the load goes to zero
For some applications and industries, the efficiency of known active rectifiers is unacceptably low or at least represents a substantial problem
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0027] refer to figure 1 , shows a circuit diagram of the hybrid rectifier 100 . In general, the hybrid rectifier 100 alleviates the problems presented by known active rectifiers and diode rectifiers by combining the advantages of diode rectifiers and active rectifiers. Although the schematic diagram of the hybrid rectifier 100 is somewhat similar to known active rectifiers, it is important to understand that the component sizes of the hybrid rectifier differ from active rectifiers. Thus, hybrid rectifiers generate less losses while providing improved efficiency compared to active rectifiers.
[0028] Specifically, a significant difference between hybrid rectifier 100 and known active rectifiers is the control technique. In contrast to active rectifiers, the simpler phase-by-phase control circuitry of hybrid rectifiers can be embedded for each phase leg of a multiphase rectifier, eliminating the isolated signals typically required by active rectifiers. Any known phase curre...
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
A hybrid rectifier is provided that includes a top diode for conducting current during the positive current portion of the line current, a top transistor connected in parallel to the top diode, a bottom diode for conducting current during the negative current portion of the line current, and a parallel connection to the bottom transistor of the bottom diode. A hybrid rectifier controller is connected to the top and bottom transistors for implementing a transistor control strategy such that during the positive current portion of the line current, the top diode conducts current and the bottom transistor conducts current only when the line current is below the sinusoidal reference current. Similarly, during the negative current portion of the line current, the bottom diode conducts current and the top transistor conducts current only when the line current is above the sinusoidal reference current.
Description
[0001] Cross References to Related Applications [0002] This application claims priority to US Patent Application No. US 62 / 410,026, filed October 19, 2016, which is hereby incorporated by reference in its entirety. technical field [0003] The described embodiments relate to power electronics. Background technique [0004] A rectifier is a device used to convert the electrical supply provided by a utility company in the form of alternating current (AC) to the form of direct current (DC) required for some applications. Electronic rectifiers are used in most AC / DC power supplies, motor drives (inverter or servo), battery chargers, etc. Almost all electronic devices powered by distribution grids use rectifiers. There are many types of rectifiers, from simple to complex, each offering different levels of performance. [0005] Typically, the simplest rectifiers use multiple diodes. These diode rectifiers have the property of producing large amounts of current distortion, wh...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H02M7/217H02M1/08
CPCH02M1/12H02M7/219H02M1/4233H02M7/23Y02B70/10H02M1/0048H02M1/4283G01R19/0092H02M1/08H02M3/33592H02M7/17H02M7/2176H03K17/687H02M1/0006
Inventor 马尔科·特伦布莱
Owner 伊玛罗格股份有限公司