Power factor correction circuit and switching power supply module, power factor correction method
A power factor correction and circuit technology, applied in the field of electronics, can solve problems such as limited increase in topology power density, and achieve the effects of flexible use of control strategies, improved power density, increased versatility and universal applicability
Active Publication Date: 2015-09-02
VERTIV CORP
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0009] Embodiments of the present invention provide a power factor correction circuit, a switching power supply module, and a power factor correction method to solve the problem of limited improvement in topology power density of a bridgeless PFC circuit in the prior art
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
[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0037] In order to solve the problem of limited increase in the power density of the bridgeless PFC circuit topology in the prior art, the embodiment of the present invention provides a brand new power factor correction circuit. This circuit topology can be set in the switching power supply module and can realize the triple frequency function. The so-called triple frequency means that the operating frequency of the inductor is equal to three times the operating frequency of the switching device. The structure of the circuit topology is as Figure 4 sho...
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 discloses a power factor correction circuit, a switching power supply module and a power factor correction method. The circuit comprises: a bridge type of a first diode, a second diode, a third diode and a fourth diode Rectifier circuit; the second switch component is connected in parallel with the first diode to form a second parallel branch; the third switch component is connected in parallel with the second diode to form a third parallel branch; the fourth switch component is connected in parallel with the third diode form the fourth parallel branch; the fifth switch assembly is connected in parallel with the fourth diode to form the fifth parallel branch; the capacitor is connected to the common terminal between the fourth parallel branch and the second parallel branch, and is connected to the fifth parallel branch The common terminal between the circuit and the third parallel branch; the inductance branch composed of the AC power supply and the inductor in series; the first switch component and the two ends of the inductance branch are connected in parallel to form the first parallel branch. The triple frequency function can be realized, so that the switching power supply module works in the working state of triple frequency, and the power density of the switching power supply module is improved.
Description
technical field [0001] The invention relates to the field of electronic technology, in particular to a power factor correction circuit, a switching power supply module and a power factor correction method. Background technique [0002] The switching power supply module is a capacitor input circuit. High efficiency and high power density are two important indicators of the switching power supply module. In order to achieve the goal of high efficiency and reduce the exchange power loss caused by the phase difference between current and voltage, it is necessary to Single-phase power factor correction (Power Factor Correction, PFC) circuit improves the power factor, where the power factor refers to the relationship between the effective power and the total power consumption, generally refers to the ratio of the effective power divided by the total power consumption, It can be used to measure the degree to which electricity is effectively utilized. The larger the power factor val...
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): H02M1/42
CPCY02B70/10Y02P80/10
Inventor 邓凯蒋建田高阳卢章庆
Owner VERTIV CORP