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Power Semiconductor Element Driving Circuit
Abstract: The objective of the present invention is to prevent an electrical power semiconductor element from being destroyed and prevent malfunctioning in an electrical power semiconductor element due to voltage fluctuation. This driving circuit (34) is characterized by being provided with: a voltage detecting unit (circuit (37)) for detecting the positive bias voltage the negative bias voltage or the total voltage of the positive bias voltage and the negative bias voltage; and a switching element (transistor (81)) connected to a negative electrode side of a negative voltage supplying power source (direct current power source (62)) and a control terminal of an electrical power element (arm (32u)); and when the value of the voltage to be detected drops below a set voltage value or when there is a rise in the voltage between a reference terminal and the control terminal in the electrical power element (arm (32u)) while the value of the voltage to be detected has dropped below the set voltage value the voltage detecting unit (circuit 37)) turns on the switching element (transistor (81)) and supplies a voltage that is at or below 0V between the terminals in the electrical power element (arm (32u)).
Notices, Deadlines & Correspondence
Patent Information
Applicants
MITSUBISHI ELECTRIC CORPORATION
Inventors
1. NAKANO,Kosuke
2. IWASAWA,Keisuke
3. MIKI,Takayoshi
4. NAKATAKE,Hiroshi
Specification
SOFT COPY ATTACHED IN PDF
Documents
Application Documents
| # | Name | Date |
|---|---|---|
| 1 | Wipo Page_10-11-2016.pdf | 2016-11-10 |
| 2 | Proof Of Right For Form1_10-11-2016.pdf | 2016-11-10 |
| 3 | Power Of Attorney_10-11-2016.pdf | 2016-11-10 |
| 4 | ISR_10-11-2016.pdf | 2016-11-10 |
| 5 | IB304_10-11-2016.pdf | 2016-11-10 |
| 6 | Form5_As Filed_10-11-2016.pdf | 2016-11-10 |
| 7 | Form3_As Filed_10-11-2016.pdf | 2016-11-10 |
| 8 | Form2_Title Page_10-11-2016.pdf | 2016-11-10 |
| 9 | Form1_As Filed_10-11-2016.pdf | 2016-11-10 |
| 10 | Form18_10-11-2016.pdf | 2016-11-10 |
| 11 | English Translaction_10-11-2016.pdf | 2016-11-10 |
| 12 | Drawings_10-11-2016.pdf | 2016-11-10 |
| 13 | Description Complete_10-11-2016.pdf | 2016-11-10 |
| 14 | Correspondence For New File_10-11-2016.pdf | 2016-11-10 |
| 15 | Claims_10-11-2016.pdf | 2016-11-10 |
| 16 | Abstract_10-11-2016.pdf | 2016-11-10 |
| 17 | Correspondence_24-11-2016.pdf | 2016-11-24 |
| 18 | Marked Up Copy_01-12-2016.pdf | 2016-12-01 |
| 19 | Form13_01-12-2016.pdf | 2016-12-01 |
| 20 | Form 2(Title Page) For Form 13_01-12-2016.pdf | 2016-12-01 |
| 21 | Correspondence_Form13_01-12-2016.pdf | 2016-12-01 |
| 22 | Amended Page Of Specification_01-12-2016.pdf | 2016-12-01 |
| 23 | Form 3 [11-04-2017(online)].pdf | 2017-04-11 |
| 24 | 201647038409-FER.pdf | 2019-03-15 |
| 25 | 201647038409-OTHERS [11-06-2019(online)].pdf | 2019-06-11 |
| 26 | 201647038409-FORM 3 [11-06-2019(online)].pdf | 2019-06-11 |
| 27 | 201647038409-FER_SER_REPLY [11-06-2019(online)].pdf | 2019-06-11 |
| 28 | 201647038409-DRAWING [11-06-2019(online)].pdf | 2019-06-11 |
| 29 | 201647038409-COMPLETE SPECIFICATION [11-06-2019(online)].pdf | 2019-06-11 |
| 30 | 201647038409-CLAIMS [11-06-2019(online)].pdf | 2019-06-11 |
| 31 | 201647038409-ABSTRACT [11-06-2019(online)].pdf | 2019-06-11 |
| 32 | 201647038409-FORM 3 [14-11-2022(online)].pdf | 2022-11-14 |
| 33 | 201647038409-US(14)-HearingNotice-(HearingDate-06-11-2023).pdf | 2023-10-13 |
| 34 | 201647038409-FORM-26 [02-11-2023(online)].pdf | 2023-11-02 |
| 35 | 201647038409-Correspondence to notify the Controller [02-11-2023(online)].pdf | 2023-11-02 |
| 36 | 201647038409-Written submissions and relevant documents [21-11-2023(online)].pdf | 2023-11-21 |
| 37 | 201647038409-Retyped Pages under Rule 14(1) [21-11-2023(online)].pdf | 2023-11-21 |
| 38 | 201647038409-certified copy of translation [21-11-2023(online)].pdf | 2023-11-21 |
| 39 | 201647038409-2. Marked Copy under Rule 14(2) [21-11-2023(online)].pdf | 2023-11-21 |
| 40 | 201647038409-PatentCertificate23-11-2023.pdf | 2023-11-23 |
| 41 | 201647038409-IntimationOfGrant23-11-2023.pdf | 2023-11-23 |
Search Strategy
| 1 | searchstragey_14-03-2019.pdf |