CN112436830A - Novel time domain conversion method in IGBT module driving - Google Patents
Novel time domain conversion method in IGBT module driving Download PDFInfo
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- CN112436830A CN112436830A CN202011247044.6A CN202011247044A CN112436830A CN 112436830 A CN112436830 A CN 112436830A CN 202011247044 A CN202011247044 A CN 202011247044A CN 112436830 A CN112436830 A CN 112436830A
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/567—Circuits characterised by the use of more than one type of semiconductor device, e.g. BIMOS, composite devices such as IGBT
Abstract
The invention discloses a novel time domain conversion method in IGBT module driving, which comprises the following steps of receiving signals; step two, detecting and verifying; step three, radio frequency conversion; step four, time domain transformation; step five, post-treatment; in the first step, the IGBT module is manually driven and connected with an external antenna, a test signal is played, the test signal is received through the external antenna, and the integrity of the test signal is detected; starting the IGBT module drive again, receiving a plurality of external signals, and sorting and summarizing the signals; the novel time domain transformation method in the IGBT module drive is simple to operate and low in cost, detection and verification are carried out and are separately and independently processed, filtering interference is eliminated, time domain parameters and frequency domain parameters of signals are quickly given out through fast Fourier transformation, bandwidth, center frequency and frequency band number parameters of time domain transformation are obtained, the time domain transformation is greatly facilitated, resource consumption is reduced, working efficiency is improved, and the novel time domain transformation method is beneficial to users.
Description
Technical Field
The invention relates to the technical field of IGBT module driving time domain conversion, in particular to a novel time domain conversion method in IGBT module driving.
Background
The IGBT and the insulated gate bipolar transistor are composite fully-controlled voltage-driven power semiconductor devices consisting of BJT bipolar transistors and MOS insulated gate field effect transistors; the traditional time domain conversion method in the IGBT module drive is to receive and process signals uniformly, is high in cost, is very easy to generate filtering interference, cannot calculate time domain parameters and frequency domain parameters of the signals, is extremely inconvenient for time domain conversion, wastes time and labor, increases resource consumption, reduces working efficiency, and is not beneficial to users; in view of these defects, it is necessary to design a new time domain conversion method in the IGBT module driving.
Disclosure of Invention
The invention aims to provide a novel time domain conversion method in IGBT module driving, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: a novel time domain conversion method in IGBT module driving comprises the steps of receiving signals; step two, detecting and verifying; step three, radio frequency conversion; step four, time domain transformation; step five, post-treatment;
in the first step, the signal receiving includes the following steps:
1) manually connecting the IGBT module with an external antenna in a driving manner, playing a test signal, receiving the test signal through the external antenna, and detecting the integrity of the test signal;
2) starting the IGBT module drive again, receiving a plurality of external signals, and sorting and summarizing the signals;
in the second step, the detection and verification comprises the following steps:
1) checking the frequency and the integrity of the plurality of external detection signals obtained in the step one 2), and screening complete signals;
2) performing quality judgment on the baseband data of the complete signal, and eliminating signals which do not meet the requirements;
in the third step, the radio frequency conversion includes the following steps:
1) manually selecting a required signal from the signals detected in the step 2), and converting the signal into a digital signal through radio frequency processing in the IGBT module driving;
2) converting the digital signal into baseband data through baseband processing, and filtering a filter of the baseband data in a frequency domain;
in the fourth step, the time domain transformation includes the following steps:
1) preprocessing the filtered signals manually, eliminating invalid data, and performing accumulation addition to obtain frequency domain data and a power spectrum of the signals;
2) passing the time domain data through F (t) ═ Σ Fnei2Πnt/TPerforming fast Fourier transform with T as function period and FnCalculating the absolute value of the signal for a Fourier expansion function, and integrating and converting the absolute value into time domain data;
in the fifth step, the integrity of the time domain data obtained in the fourth step 2) and the verifier is manually detected, and the time domain data and the verifier are stored in a computer and backed up and stored in a file room.
According to the technical scheme, the test signal in the step 1) is the same as the normally received signal.
According to the technical scheme, the signals which do not meet the requirements in the step two 2) need to be screened and classified again.
According to the technical scheme, the converted signals in the step three 2) need to be backed up and stored.
According to the technical scheme, a Fourier function image needs to be drawn after calculation in the step four 2).
According to the technical scheme, the fifth step can also be stored in the mobile phone of the user.
Compared with the prior art, the invention has the following beneficial effects: this novel time domain transform method in IGBT module drive, easy operation, it is with low costs, will detect the verification and separately handle alone, eliminate filtering interference, through fast Fourier transform, give the time domain parameter and the frequency domain parameter of signal fast, obtain the bandwidth, the center frequency and the frequency band number parameter of time domain transform, very big convenient time domain transform, labour saving and time saving reduces the resource consumption, increases work efficiency, is favorable to the user to use.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a process flow diagram of the present invention;
fig. 2 is a radio frequency conversion diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a novel time domain conversion method in IGBT module driving comprises the steps of receiving signals; step two, detecting and verifying; step three, radio frequency conversion; step four, time domain transformation; step five, post-treatment;
in the first step, the signal receiving includes the following steps:
1) manually connecting the IGBT module with an external antenna in a driving manner, playing a test signal, receiving the test signal through the external antenna, and detecting the integrity of the test signal, wherein the test signal is the same as a normally received signal;
2) starting the IGBT module drive again, receiving a plurality of external signals, and sorting and summarizing the signals;
in the second step, the detection and verification comprises the following steps:
1) checking the frequency and the integrity of the plurality of external detection signals obtained in the step one 2), and screening complete signals;
2) performing quality judgment on the baseband data of the complete signals, eliminating signals which do not meet the requirements, and performing screening classification on the signals which do not meet the requirements again;
in the third step, the radio frequency conversion includes the following steps:
1) manually selecting a required signal from the signals detected in the step 2), and converting the signal into a digital signal through radio frequency processing in the IGBT module driving;
2) converting the digital signal into baseband data through baseband processing, and filtering a frequency domain of a filter of the digital signal, wherein the converted signal needs to be backed up and stored;
in the fourth step, the time domain transformation includes the following steps:
1) preprocessing the filtered signals manually, eliminating invalid data, and performing accumulation addition to obtain frequency domain data and a power spectrum of the signals;
2) passing the time domain data through F (t) ═ Σ Fnei2Πnt/TPerforming fast Fourier transform with T as function period and FnCalculating the absolute value of the signal for Fourier expansion function, and converting the integration into time domain
Data, after calculation, a Fourier function image needs to be drawn;
in the fifth step, the time domain data obtained in the fourth step 2), the integrity of the verifier and the computer are manually detected, and the time domain data and the verifier are stored in a computer, backed up and stored in a file room or stored in a mobile phone of a user.
Based on the above, the novel time domain conversion method in the IGBT module drive has the advantages of being simple in operation and low in cost, enabling detection and verification to be separately and independently processed, eliminating filtering interference, rapidly giving time domain parameters and frequency domain parameters of signals through fast Fourier transform, obtaining bandwidth, center frequency and frequency band number parameters of time domain conversion, greatly facilitating time domain conversion, saving time and labor, reducing resource consumption, increasing working efficiency and being beneficial to users.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A novel time domain conversion method in IGBT module driving comprises the steps of receiving signals; step two, detecting and verifying; step three, radio frequency conversion; step four, time domain transformation; step five, post-treatment; the method is characterized in that:
in the first step, the signal receiving includes the following steps:
1) manually connecting the IGBT module with an external antenna in a driving manner, playing a test signal, receiving the test signal through the external antenna, and detecting the integrity of the test signal;
2) starting the IGBT module drive again, receiving a plurality of external signals, and sorting and summarizing the signals;
in the second step, the detection and verification comprises the following steps:
1) checking the frequency and the integrity of the plurality of external detection signals obtained in the step one 2), and screening complete signals;
2) performing quality judgment on the baseband data of the complete signal, and eliminating signals which do not meet the requirements;
in the third step, the radio frequency conversion includes the following steps:
1) manually selecting a required signal from the signals detected in the step 2), and converting the signal into a digital signal through radio frequency processing in the IGBT module driving;
2) converting the digital signal into baseband data through baseband processing, and filtering a filter of the baseband data in a frequency domain;
in the fourth step, the time domain transformation includes the following steps:
1) preprocessing the filtered signals manually, eliminating invalid data, and performing accumulation addition to obtain frequency domain data and a power spectrum of the signals;
2) passing the time domain data through F (t) ═ Σ Fnei2Πnt/TPerforming fast Fourier transform with T as function period and FnCalculating the absolute value of the signal for Fourier expansion function, and converting the absolute value into the signal
Time domain data;
in the fifth step, the integrity of the time domain data obtained in the fourth step 2) and the verifier is manually detected, and the time domain data and the verifier are stored in a computer and backed up and stored in a file room.
2. The novel time domain conversion method in the IGBT module driving according to claim 1, characterized in that: the test signal in the step 1) is the same as the ordinary received signal.
3. The novel time domain conversion method in the IGBT module driving according to claim 1, characterized in that: and (3) carrying out screening classification again on the signals which do not meet the requirements in the step two 2).
4. The novel time domain conversion method in the IGBT module driving according to claim 1, characterized in that: the converted signals in the step three 2) need to be backed up and stored.
5. The novel time domain conversion method in the IGBT module driving according to claim 1, characterized in that: and 4) drawing a Fourier function image after calculation in the step four 2).
6. The novel time domain conversion method in the IGBT module driving according to claim 1, characterized in that: and step five, the mobile phone can also be stored in the mobile phone of the user.
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Citations (6)
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| CA2159259A1 (en) * | 1994-10-24 | 1996-04-25 | Robert Bazinet | Multifrequency electromagnetic surveying method and system |
| CA2384613A1 (en) * | 1999-09-14 | 2001-03-22 | Paul F. Ierymenko | Unitary transducer control system |
| US20090243398A1 (en) * | 2008-03-28 | 2009-10-01 | Yohanan Tom G | Systems and Methods for Reducing Distortion in a Power Source Using an Active Harmonics Filter |
| CN103728502A (en) * | 2013-12-31 | 2014-04-16 | 华为终端有限公司 | Antenna test method and system and wireless terminal |
| JP2014068090A (en) * | 2012-09-25 | 2014-04-17 | Hitachi Ltd | Mobile position detector, and wireless transmitter |
| JP2016067075A (en) * | 2014-09-22 | 2016-04-28 | キヤノン株式会社 | Electronic apparatus |
-
2020
- 2020-11-10 CN CN202011247044.6A patent/CN112436830A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2159259A1 (en) * | 1994-10-24 | 1996-04-25 | Robert Bazinet | Multifrequency electromagnetic surveying method and system |
| CA2384613A1 (en) * | 1999-09-14 | 2001-03-22 | Paul F. Ierymenko | Unitary transducer control system |
| US20090243398A1 (en) * | 2008-03-28 | 2009-10-01 | Yohanan Tom G | Systems and Methods for Reducing Distortion in a Power Source Using an Active Harmonics Filter |
| JP2014068090A (en) * | 2012-09-25 | 2014-04-17 | Hitachi Ltd | Mobile position detector, and wireless transmitter |
| CN103728502A (en) * | 2013-12-31 | 2014-04-16 | 华为终端有限公司 | Antenna test method and system and wireless terminal |
| JP2016067075A (en) * | 2014-09-22 | 2016-04-28 | キヤノン株式会社 | Electronic apparatus |
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