CN109687852B - Signal shaping driving integrated chip of encoder - Google Patents
Signal shaping driving integrated chip of encoder Download PDFInfo
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- CN109687852B CN109687852B CN201910039688.7A CN201910039688A CN109687852B CN 109687852 B CN109687852 B CN 109687852B CN 201910039688 A CN201910039688 A CN 201910039688A CN 109687852 B CN109687852 B CN 109687852B
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/01—Shaping pulses
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/22—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
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- Analogue/Digital Conversion (AREA)
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Abstract
The invention provides a signal shaping driving integrated chip of a coder, which comprises: the device comprises six comparators and 28 ports, wherein 12 ports are used as input ports of a signal shaping driving integrated chip, every two ports are respectively connected with two input ends of one comparator, 12 ports of the rest 16 ports are used as output ports of the signal shaping driving integrated chip, and every two ports are respectively connected with the input end of one comparator; and a first resistor is connected between the non-inverting input end and the output end of each comparator, the output end of each comparator is connected with a direct-current power supply after being connected with a second resistor, and the output end of each comparator is grounded after being connected with a capacitor. By using the signal shaping driving integrated chip of the encoder provided by the invention, one integrated chip replaces the original four chips to realize 6-channel operation, the number of devices and the failure rate are reduced, and the stability of the product is improved.
Description
Technical Field
The invention relates to the technical field of encoders, in particular to a signal shaping driving integrated chip of an encoder.
Background
Currently, the form of signal shaping to the drive output of a popular encoder circuit is as follows: light beams generated by cutting the LED by the static grating are mapped on the silicon photodiode array, and analog signals generated along with the change of the cutting area of the light beams are subjected to circuit shaping by the comparator and then are differentially output. When using the output encoder of 6 passageways, because its single-chip is 4 passageways, so use 2 comparator chips and 2 driver chips to realize 6 passageway operations usually, have electron device and cross miscellaneous, bulky, integrate the degree low, the problem that the fault rate is high.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a signal shaping driving integrated chip for an encoder, so as to solve the problems of a 6-channel output encoder that the size is large and the degree of integration is low.
The invention provides a signal shaping driving integrated chip of an encoder, which comprises: six comparators and 28 ports, 4 ports are connected with a direct current power supply; the 18 port is grounded; ports 14 and 28 are suspended; the 5 port and the 6 port are respectively connected with a non-inverting input end and an inverting input end of a comparator, and the output end of the comparator is differential output and is connected with the 2 port and the 3 port; the 7 port and the 8 port are respectively connected with a non-inverting input end and an inverting input end of a comparator, and the output end of the comparator is differential output and is connected with the 27 port and the 1 port; the 9 port and the 10 port are respectively connected with a non-inverting input end and an inverting input end of a comparator, and the output end of the comparator is differential output and is connected with the 25 port and the 26 port; the 11 port and the 12 port are respectively connected with a non-inverting input end and an inverting input end of a comparator, and the output end of the comparator is differential output and is connected with the 23 port and the 24 port; the 13 port and the 15 port are respectively connected with a non-inverting input end and an inverting input end of a comparator, and the output end of the comparator is differential output and is connected with the 21 port and the 22 port; the 16 port and the 17 port are respectively connected with a non-inverting input end and an inverting input end of a comparator, and the output end of the comparator is differential output and is connected with the 19 port and the 20 port; and a first resistor is connected between the non-inverting input end and the output end of each comparator, the output end of each comparator is connected with a direct-current power supply after being connected with a second resistor, and the output end of each comparator is grounded after being connected with a capacitor.
In addition, preferably, two diodes are connected to the two differential output lines of each comparator, respectively, and the anodes of the two diodes are grounded while the cathodes thereof are connected to the differential output lines.
The signal shaping driving integrated chip of the encoder of the invention can obtain the following technical effects:
1. the 6-channel operation is realized by replacing the original four chips with one integrated chip, so that the number of devices and the failure rate are reduced, and the stability of the product is improved.
2. The electronic device is simple, and the free space of the circuit board is more than the surplus, so that the integrity and the sustainable development of signals are improved.
Drawings
Other objects and results of the present invention will become more apparent and readily appreciated by reference to the following description taken in conjunction with the accompanying drawings, and as the invention becomes more fully understood. In the drawings:
FIG. 1 is an electrical schematic diagram of a signal shaping driver integrated chip of an encoder according to an embodiment of the present invention;
fig. 2 is a packaged structure diagram of a signal shaping driver ic of an encoder according to an embodiment of the present invention.
Wherein the reference numerals include: comparator CMP, first resistance R1, second resistance R2, electric capacity C, diode D.
Detailed Description
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.
As shown in fig. 1 and fig. 2, the signal shaping driving integrated chip of the encoder provided by the present invention includes: six comparators CMP and 28 ports, 4 of which are connected with a direct current power supply; the 18 port is grounded; ports 14 and 28 are suspended; the 5 port and the 6 port are respectively connected with a non-inverting input end and an inverting input end of a comparator CMP, and the output end of the comparator CMP is differential output and is connected with the 2 port and the 3 port; the 7 port and the 8 port are respectively connected with a non-inverting input end and an inverting input end of a comparator CMP, and the output end of the comparator CMP is differential output and is connected with the 27 port and the 1 port; the 9 port and the 10 port are respectively connected with a non-inverting input end and an inverting input end of a comparator CMP, and the output end of the comparator CMP is differential output and is connected with the 25 port and the 26 port; the 11 port and the 12 port are respectively connected with a non-inverting input end and an inverting input end of a comparator CMP, and the output end of the comparator CMP is differential output and is connected with the 23 port and the 24 port; the 13 port and the 15 port are respectively connected with a non-inverting input end and an inverting input end of a comparator CMP, and the output end of the comparator CMP is differential output and is connected with the 21 port and the 22 port; the 16 ports and the 17 ports are respectively connected with a non-inverting input end and an inverting input end of a comparator CMP, and the output end of the comparator CMP is differential output and is connected with the 19 ports and the 20 ports; a second resistor R1 is connected between the non-inverting input end and the output end of each comparator CMP, the output end of each comparator CMP is connected with a direct current power supply after being connected with the second resistor R2, and the output end of each comparator CMP is grounded after being connected with a capacitor C.
Two differential output lines of each comparator CMP are respectively connected with two diodes D, the anodes of the two diodes D are grounded, the cathodes of the two diodes D are connected to the differential output lines, and the diodes D play a role in protecting the signal shaping driving integrated chip and prevent external voltage from entering the shaping driving integrated chip to damage the shaping driving integrated chip.
The invention realizes 6-channel operation by replacing the original four chips with one integrated chip, thereby reducing the number of devices and the failure rate and improving the stability of the product; in addition, the electronic device is simple, and the free space of the circuit board is excessive, so that the integrity and sustainable development of signals are improved.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (2)
1. A signal shaping driver ic for an encoder, comprising: six comparators and 28 ports, 4 ports are connected with a direct current power supply; the 18 port is grounded; ports 14 and 28 are suspended; the 5 port and the 6 port are respectively connected with a non-inverting input end and an inverting input end of a comparator, and the output end of the comparator is differential output and is connected with the 2 port and the 3 port; the 7 port and the 8 port are respectively connected with a non-inverting input end and an inverting input end of a comparator, and the output end of the comparator is differential output and is connected with the 27 port and the 1 port; the 9 port and the 10 port are respectively connected with a non-inverting input end and an inverting input end of a comparator, and the output end of the comparator is differential output and is connected with the 25 port and the 26 port; the 11 port and the 12 port are respectively connected with a non-inverting input end and an inverting input end of a comparator, and the output end of the comparator is differential output and is connected with the 23 port and the 24 port; the 13 port and the 15 port are respectively connected with a non-inverting input end and an inverting input end of a comparator, and the output end of the comparator is differential output and is connected with the 21 port and the 22 port; the 16 port and the 17 port are respectively connected with a non-inverting input end and an inverting input end of a comparator, the output end of the comparator is differential output and is connected with the 19 port and the 20 port; and a first resistor is connected between the non-inverting input end and the output end of each comparator, the output end of each comparator is connected with a direct-current power supply after being connected with a second resistor, and the output end of each comparator is grounded after being connected with a capacitor.
2. The signal shaping driver ic of claim 1, wherein two diodes are connected to the two differential output lines of each comparator, respectively, and the anodes of the two diodes are grounded while the cathodes thereof are connected to the differential output lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910039688.7A CN109687852B (en) | 2019-01-16 | 2019-01-16 | Signal shaping driving integrated chip of encoder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910039688.7A CN109687852B (en) | 2019-01-16 | 2019-01-16 | Signal shaping driving integrated chip of encoder |
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| CN109687852A CN109687852A (en) | 2019-04-26 |
| CN109687852B true CN109687852B (en) | 2022-12-02 |
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| CN201910039688.7A Active CN109687852B (en) | 2019-01-16 | 2019-01-16 | Signal shaping driving integrated chip of encoder |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1349273A2 (en) * | 2002-03-26 | 2003-10-01 | Broadcom Corporation | Single-ended-to-differential converter with common-mode voltage control |
| WO2010066096A1 (en) * | 2008-12-12 | 2010-06-17 | 深圳市鑫汇科科技有限公司 | Voltage and current surge protective method and its circuit for induction cooker |
| CN102095920A (en) * | 2010-12-10 | 2011-06-15 | 上海申瑞电力科技股份有限公司 | Monitoring device for electrical level amplitude of serial communication signal |
| CN207117167U (en) * | 2017-09-01 | 2018-03-16 | 珠海思奇科技有限公司 | A kind of power device circuit with overcurrent protection function |
-
2019
- 2019-01-16 CN CN201910039688.7A patent/CN109687852B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1349273A2 (en) * | 2002-03-26 | 2003-10-01 | Broadcom Corporation | Single-ended-to-differential converter with common-mode voltage control |
| WO2010066096A1 (en) * | 2008-12-12 | 2010-06-17 | 深圳市鑫汇科科技有限公司 | Voltage and current surge protective method and its circuit for induction cooker |
| CN102095920A (en) * | 2010-12-10 | 2011-06-15 | 上海申瑞电力科技股份有限公司 | Monitoring device for electrical level amplitude of serial communication signal |
| CN207117167U (en) * | 2017-09-01 | 2018-03-16 | 珠海思奇科技有限公司 | A kind of power device circuit with overcurrent protection function |
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| CN109687852A (en) | 2019-04-26 |
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