Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Power consumption control circuit, intelligent power module and frequency variable household appliance

A technology for power consumption control and control module, which is applied in the direction of converting DC power input to DC power output, adjusting electrical variables, and controlling/regulating systems, etc. The problem of low switching loss of components, etc., achieves the effect of reducing the occupied area, small driving capacity, and reducing power consumption

Active Publication Date: 2014-05-14
GD MIDEA AIR-CONDITIONING EQUIP CO LTD
View PDF4 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0028] For the state of low-frequency operation of the compressor, it is often desired to obtain low power consumption. When using IGBT tubes as on-off components, due to the tailing effect of IGBT tubes, the switching loss of the on-off components cannot be very low, so that the smart power The loss of the module 100 cannot be made very low
[0029] If the IGBT tube is replaced by a non-smearing MOS tube, the on-off loss and system power consumption can indeed be reduced when the compressor is working at low frequency, but due to the limitation of the current capacity of the MOS tube, when the compressor enters A large current will exceed the current range that the MOS tube can withstand, causing the MOS tube to burn out due to overcurrent, and even cause a fire in severe cases
[0030] In the related technology, the low-frequency operating loss of the intelligent power module is reduced by improving the tailing effect of the IGBT tube, but this special process makes the production cost of the IGBT tube very high, which is not suitable for popularization in civilian fields such as inverter air conditioners.
[0031] Therefore, how to reduce the loss of the intelligent power module when it works at low frequency, and avoid the risk of overcurrent when it works at high frequency, and how to make the production cost suitable for the civilian field has become a technical problem that needs to be solved urgently.

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
  • Power consumption control circuit, intelligent power module and frequency variable household appliance
  • Power consumption control circuit, intelligent power module and frequency variable household appliance
  • Power consumption control circuit, intelligent power module and frequency variable household appliance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0096] Embodiment 1: The switching control module 306 only makes any one of the IGBT tubes in the working state when receiving the first signal.

[0097] (1) Module composition

[0098] corresponds to Figure 4 The intelligent power module shown, Figure 5 A schematic structural diagram of a power consumption control circuit according to an embodiment of the present invention is shown.

[0099] like Figure 5 As shown, according to an embodiment of the present invention, preferably, the switch control module 304 may include: a switch circuit 3042, and an NMOS transistor is used as an example for illustration in the figure, and the gate of the NMOS transistor is connected to the control chip through the ISO port, the drain The electrode is connected to the current signal source, the substrate is connected to the source and grounded, and is used to conduct when the high-frequency operating signal is received, so that the signal source is grounded, and when the low-frequency o...

Embodiment approach 1

[0103] Figure 6A Yes Figure 5 A schematic structural view of a specific implementation of the illustrated embodiment.

[0104] like Figure 6A As shown, according to a preferred embodiment of the present invention, the state control circuit 3044 includes: an analog switch, and the analog switch includes: a control element connected to the signal source (such as the above-mentioned current signal source) and the Between the switch circuits 3042, a first switch signal is generated when the switch circuit 3042 is turned on, and a second switch signal is generated when the switch circuit 3042 is turned off; controlled, one end of the controlled is connected to the corresponding signal input terminal of the switch component (such as Figure 6A The HIN1 port shown), the other end of the controlled device is connected to the first driving circuit 4409 when receiving the first switching signal, and connected to the second driving circuit 4409 when receiving the second switching s...

Embodiment approach 2

[0108] Figure 6B Yes Figure 5 A schematic structural view of another embodiment of the illustrated embodiment.

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

No PUM Login to View More

Abstract

The invention provides a power consumption control circuit which comprises a low-power-consumption switch element and a switching control module. The low-power-consumption switch element is connected to any IGBT in an intelligent power module in parallel to form a switch assembly, and the switching control module is connected to a control chip corresponding to the intelligent power module, used for only enabling any IGBT or simultaneously enabling any IGBT and the low-power-consumption switch element to be in the working state under the condition that a high-frequency working signal coming from a control chip is received, and used for only enabling the low-power-consumption switch element to be in the working state under the condition that a low-frequency working signal coming from the control chip is received. The invention further provides the intelligent power module and a frequency variable home appliance. According to the technical scheme, different on-off parts can be adopted at the different working frequencies, the power consumption of the intelligent power module is easily reduced accordingly, and the risk that the on-off parts are broken down by an overcurrent can be avoided.

Description

technical field [0001] The present invention relates to the technical field of power consumption control, in particular to a power consumption control circuit, an intelligent power module and a frequency conversion household appliance. Background technique [0002] Intelligent Power Module, or IPM (Intelligent Power Module), is a power drive product that combines power electronics and integrated circuit technology. The intelligent power module integrates the power switching device and the high-voltage driving circuit, and has built-in fault detection circuits such as overvoltage, overcurrent and overheating. On the one hand, the intelligent power module receives the control signal from the MCU to drive the subsequent circuit to work, and on the other hand, it sends the system status detection signal back to the MCU. Compared with the traditional discrete solution, the intelligent power module wins more and more markets due to its advantages of high integration and high reli...

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
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/156H02M1/36H02M1/088
Inventor 冯宇翔
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products