Electric current control device applying to transistor

A technology of current control and current control module, applied in control/regulation system, regulation of electrical variables, instruments, etc., can solve problems such as inability to obtain the ratio of collector current Ic1 and Ic2, temperature measurement error, etc.

Active Publication Date: 2009-08-19
FEATURE INTEGRATION TECH INC
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, those skilled in the art should be able to understand that the temperature of the bipolar junction transistor 100 can be measured by a dual current mode (dual current mode) temperature measurement method to measure two different emitter currents Ie1 and Ie2 of the bipolar junction transistor 100 And further calculation to obtain a temperature measurement result, and because the temperature of the bipolar junction transistor 100 is directly related to the ratio of the collector current Ic1 and Ic2 in fact, so in the advanced technology, when the bipolar junction transistor 100 When the β value becomes smaller and changes with the current size, the existing technology cannot obtain the true ratio between the collector current Ic1 and Ic2, thus causing serious temperature measurement errors

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
  • Electric current control device applying to transistor
  • Electric current control device applying to transistor
  • Electric current control device applying to transistor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] Some words are used in this application to refer to specific components, but those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component, and this description and claims do not refer to specific components. The difference is used as the way to distinguish the components, but the functional difference of the components is used as the criterion for the distinction. The "comprising" mentioned in the application documents is an open term, so it should be interpreted as "contains but is not limited to", in addition, the term "coupled" includes any direct and indirect electrical connection means, therefore, if it is described in the text that a first device is coupled to a second device, it means that the first device can directly electrically connected to the second device, or indirectly electrically connected to the second device through other devices or connection means.

[0039] Please refer to figure 2 ,...

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 current control device which is applied to a transistor; the transistor has a control endpoint, a first endpoint and a second endpoint, moreover, the current control device comprises a current control module, a first current mirror module, a second current mirror module, a current subtracter, and a current regulating module. The current control device can be applied to a bipolar junction transistor, thereby avoiding the occurrence of a temperature measurement error when a dual current mode temperature measurement method is used for measuring the temperature of the bipolar junction transistor.

Description

technical field [0001] The present invention relates to a current control device, in particular to a current control device that can be applied to a bipolar junction transistor, so that the bipolar junction transistor can be measured by using a dual current mode temperature measurement method The temperature can avoid the generation of temperature measurement error. Background technique [0002] Please refer to figure 1 , figure 1 Shown is a simplified schematic diagram of a bipolar junction transistor (BJT) 100 according to known techniques. Such as figure 1 As shown, the bipolar junction transistor 100 has a base, an emitter and a collector, and its base current Ib, emitter current Ie and collector current Ic have the following relationship: [0003] Ib+Ie+Ic=0 [0004] Ie=-(β+1)Ic / β [0005] In addition, those skilled in the art should be able to understand that the temperature of the bipolar junction transistor 100 can be measured by a dual current mode (dual curre...

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): G05F3/26
Inventor 李宗学黄德燻
Owner FEATURE INTEGRATION TECH INC
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
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap