CN102931933A - Proportion-adjustable multiway universal programmable voltage amplification module - Google Patents
Proportion-adjustable multiway universal programmable voltage amplification module Download PDFInfo
- Publication number
- CN102931933A CN102931933A CN2012104587699A CN201210458769A CN102931933A CN 102931933 A CN102931933 A CN 102931933A CN 2012104587699 A CN2012104587699 A CN 2012104587699A CN 201210458769 A CN201210458769 A CN 201210458769A CN 102931933 A CN102931933 A CN 102931933A
- Authority
- CN
- China
- Prior art keywords
- programmable
- module
- voltage amplification
- microcontroller
- precision resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Control Of Amplification And Gain Control (AREA)
Abstract
The invention relates to a proportion-adjustable multiway universal programmable voltage amplification module which comprises a programmable multiway switch array, an operational amplifier, a precision resistance module and a programmable control module. The precision resistance module is provided with a resistor for realizing different voltage amplification proportions; the programmable module comprises a data storage, a level conversion chip and a micro controller; the data storage is directly connected with an I/O (Input/Output) port of the micro controller; the I/O port of the micro controller is connected with a serial communication interface of a computer by the level conversion chip; the control end of the programmable multiway switch array is connected with the I/O port of the micro controller; and the actuating end of the programmable multiway switch array is connected with the operational amplifier and the precision resistance module. The voltage amplification module disclosed by the invention is connected and communicated with the computer, can be programmed on line and fulfills the purposes of multichannel selection and controllable amplification proportion.
Description
Technical field
The present invention relates to a kind of programmable voltage amplification module, belong to the applications of electronic circuitry technical field.
Background technology
In the applications of electronic circuitry technology, can realize tested voltage amplification or the ratio of dwindling are regulated by the direct voltage amplifying technique, thereby realize test to voltage applying circuit, in various test control systems, be widely applied.The mode that realizes at present voltage amplification is broadly divided into:
1, single channel fixed proportion voltage amplification;
2, multichannel fixed proportion voltage amplification;
3, multichannel fixed proportion able to programme voltage amplification;
All there is following shortcoming in the mode of above-mentioned several voltage amplifications: each channel voltage amplifying circuit can't carry out general, and in a single day certain product finishes assembling, and then voltage amplification ratio can't be adjusted.
Summary of the invention
The objective of the invention is the shortcoming for above-mentioned conventional voltage amplifier circuit, a kind of ratio adjustable multi-channel general programmable voltage amplification module is provided.
Voltage amplification module of the present invention comprises: the programmable multiple switch arrays, operational amplifier, precision resistance module and programmable control module, described precision resistance module is provided with the resistance of realizing different voltage amplification ratios, programmable module comprises data storage, level transferring chip, microcontroller, data storage directly is connected on the I/O of microcontroller, the I/O mouth of microcontroller is connected with the serial communication interface of computer by level transferring chip, programmable multiple switch arrays control end is connected with the I/O mouth of microcontroller, and actuating station links to each other with operational amplifier and precision resistance module.
The present invention makes voltage amplification module and computer carry out connecting communication, but makes its online programming, realizes that multichannel is selected, the controllable purpose of magnification ratio.
Description of drawings
Fig. 1 is the structured flowchart of voltage amplification module of the present invention.
Software flow block diagram when Fig. 2 is voltage amplification module work of the present invention.
Embodiment
The invention will be further described below in conjunction with above-mentioned accompanying drawing example:
As shown in Figure 1, voltage amplification module of the present invention comprises: the programmable multiple switch arrays, operational amplifier, precision resistance module and programmable control module, wherein said precision resistance module is provided with the resistance of realizing different voltage amplification ratios, programmable module comprises data storage, level transferring chip and microcontroller, described level transferring chip is 232 level transferring chip, data storage directly is connected on the I/O of microcontroller, the I/O mouth of microcontroller is connected with the serial communication interface of computer by level transferring chip, programmable multiple switch arrays control end is connected with the I/O mouth of microcontroller, and actuating station links to each other with operational amplifier and precision resistance module.
Operation principle of the present invention is: the voltage amplification module links to each other with serial ports of computers, computer sends microcontroller to by the order that 232 level transferring chip will need to carry out, microcontroller receives the laggard line command of order and processes, control end by control programmable switch array is selected voltage input channel (single channel work or multichannel work), controls simultaneously the control end of programmable switch array and selects the precision resistance value to cooperate operational amplifier to carry out different magnification ratios.Each passage can be selected the difference of programmable switch array to arrange by microcontroller and realize interchannel generalization.The output of every execution primary voltage, data storage can be recorded in the permutation and combination situation of programmable switch array in the situation of this voltage amplification ratio and the selection situation of precision resistance value.
The software flow of voltage amplification module of the present invention is seen Fig. 2, when product works, by the serial ports initialization, computer sends command signal, address signal and data-signal to microcontroller, then controls the programmable switch array and selects different voltage amplification ratio-voltage output.Its software flow is: beginning-serial ports initialization-microcontroller receives order-address decoding-transmission addressing-switch arrays command execution-precision resistance selection-data stored record-end.When needs change voltage channel, magnification ratio, the RS232 level die terminals of voltage amplification module is connected on the serial communication interface of computer, microcontroller at first sends " being ready to " instruction to computer by its software flow, the notice computer sends related data, when microcontroller is subject to data that computer sends, related data is stored in finishes channel selecting and magnification ratio in the memory and select, then continue normal operation.
Claims (2)
1. ratio adjustable multi-channel general programmable voltage amplification module, it is characterized in that: this voltage amplification module comprises: the programmable multiple switch arrays, operational amplifier, precision resistance module and programmable control module, described precision resistance module is provided with the resistance of realizing different voltage amplification ratios, programmable module comprises data storage, level transferring chip, microcontroller, data storage directly is connected on the I/O of microcontroller, the I/O mouth of microcontroller is connected with the serial communication interface of computer by level transferring chip, programmable multiple switch arrays control end is connected with the I/O mouth of microcontroller, and actuating station links to each other with operational amplifier and precision resistance module.
2. ratio adjustable multi-channel general programmable voltage amplification module as claimed in claim 1, it is characterized in that: described level transferring chip is 232 level transferring chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104587699A CN102931933A (en) | 2012-11-15 | 2012-11-15 | Proportion-adjustable multiway universal programmable voltage amplification module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104587699A CN102931933A (en) | 2012-11-15 | 2012-11-15 | Proportion-adjustable multiway universal programmable voltage amplification module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102931933A true CN102931933A (en) | 2013-02-13 |
Family
ID=47646663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104587699A Pending CN102931933A (en) | 2012-11-15 | 2012-11-15 | Proportion-adjustable multiway universal programmable voltage amplification module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102931933A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040119477A1 (en) * | 2002-12-23 | 2004-06-24 | Mehdi Kazemi-Nia | Weighted multi-input variable gain amplifier |
| US20050143942A1 (en) * | 2003-02-25 | 2005-06-30 | Microchip Technology Incorporated | Multi-channel amplifier having programmable operational characteristics controlled with a serial interface |
| CN201479087U (en) * | 2009-05-27 | 2010-05-19 | 余国刚 | Numerical control multi-channel amplifier |
| CN102270972A (en) * | 2011-04-18 | 2011-12-07 | 上海信朴臻微电子有限公司 | Variable-gain amplifier |
-
2012
- 2012-11-15 CN CN2012104587699A patent/CN102931933A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040119477A1 (en) * | 2002-12-23 | 2004-06-24 | Mehdi Kazemi-Nia | Weighted multi-input variable gain amplifier |
| US20050143942A1 (en) * | 2003-02-25 | 2005-06-30 | Microchip Technology Incorporated | Multi-channel amplifier having programmable operational characteristics controlled with a serial interface |
| CN201479087U (en) * | 2009-05-27 | 2010-05-19 | 余国刚 | Numerical control multi-channel amplifier |
| CN102270972A (en) * | 2011-04-18 | 2011-12-07 | 上海信朴臻微电子有限公司 | Variable-gain amplifier |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TW200739599A (en) | Test operation of multi-port memory device | |
| GB2474592A (en) | Fractional program commands for memory devices | |
| TW200721170A (en) | Multi-port semiconductor memory device | |
| WO2008117111A3 (en) | Flash memory control interface | |
| WO2013148354A3 (en) | Nand flash memory interface | |
| US20220206701A1 (en) | Memory system including a memory controller | |
| TW200703362A (en) | Memory modules and memory systems having the same | |
| CN101471130B (en) | Phase-change memory device and its control method | |
| CN105706396A (en) | Communication module for a field bus device | |
| TW200737712A (en) | Common input/output terminal control circuit | |
| US20080042688A1 (en) | Line driver device | |
| CN101887091A (en) | Device and method for testing Ethernet power supply equipment | |
| CN102931933A (en) | Proportion-adjustable multiway universal programmable voltage amplification module | |
| US11303721B2 (en) | Memory device with a multi-mode communication mechanism | |
| US9856985B2 (en) | Valve manifold circuit board with serial communication circuit line | |
| US11221605B2 (en) | Intelligent fan control system with interface compatibility | |
| US20160134276A1 (en) | Switch circuit for voltage | |
| CN110471811A (en) | One is applied to the control system of input/output interface configuration | |
| CN106921379B (en) | Input circuit | |
| JP5565623B2 (en) | I / O module | |
| CN103229158A (en) | Control circuit and control method for inter-integrated circuit bus | |
| CN107577202B (en) | Automation system and method for operating the same | |
| CN109639379B (en) | Sensor assembly and sensor system | |
| CN113689903A (en) | Memory device | |
| KR20180092149A (en) | Memory device of adaptively determining memory bandwidth and operating method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130213 |