CN216593457U - Absolute value encoder - Google Patents
Absolute value encoder Download PDFInfo
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- CN216593457U CN216593457U CN202123282003.3U CN202123282003U CN216593457U CN 216593457 U CN216593457 U CN 216593457U CN 202123282003 U CN202123282003 U CN 202123282003U CN 216593457 U CN216593457 U CN 216593457U
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Abstract
The utility model discloses an absolute value encoder, include: the circuit board, the single chip microcomputer, the first magnetic sensor chip and the second magnetic sensor chip are arranged on the front face of the circuit board, the first magnetic sensor chip and the second magnetic sensor chip are arranged on a circle with the diameter of-mm and the center of the circuit board as the circle center, and the difference between the circumferential angles of the first magnetic sensor chip and the second magnetic sensor chip is 90 degrees; a magnetic encoder chip is arranged in the center of the back side of the circuit board; the utility model discloses an absolute value encoder, simple structure, production is easy, and the reliability is high, power saving more.
Description
Technical Field
The utility model relates to an absolute value encoder.
Background
The existing multi-turn absolute value encoder with battery memory generally needs two single-chip microcomputers, one micro-power consumption single-chip microcomputer counts the turns after a 5V power supply is powered off, the correct turns are calculated after one single-chip microcomputer receives a 5V power supply, the function of counting the turns is taken over, the absolute position of the turn is obtained, data are exchanged with external equipment through 485 communication, the circuit is complex, program compiling is relatively complex, especially power consumption is large, the service life of a battery of ten years is not achieved, and the battery needs to be replaced within 2-3 years. The utility model discloses simple structure, cost and ordinary encoder differ a little, and compare with current battery powered's many rings of absolute value encoder, battery life reaches more than 1 times, and the procedure is compiled simply, and work is more reliable.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to solve the problem, the utility model provides an absolute value encoder, simple structure, cost and ordinary encoder differ a little, and compare with current battery powered's many rings of absolute value encoder, battery life reaches more than 1 times, and the programming is simple, and work is more reliable.
(II) technical scheme
The utility model discloses an absolute value encoder, include: the magnetic encoder comprises a circuit board, a single chip microcomputer, a first magnetic sensor chip, a second magnetic sensor chip and a magnetic encoder chip; the first magnetic sensor chip and the second magnetic sensor chip are arranged on the front surface of the circuit board, and the angle of the circumferences of the first magnetic sensor chip and the second magnetic sensor chip is 90 degrees different on a circumference with the diameter of-mm and taking the center of the circuit board as the circle center; a magnetic encoder chip is arranged in the center of the back side of the circuit board; the first magnetic sensor chip and the second magnetic sensor chip adopt low-voltage micro-power-consumption magneto-resistance effect sensor chips, the singlechip chip of the singlechip adopts a micro-power-consumption singlechip chip, and output pins of the first magnetic sensor chip and the second magnetic sensor chip are directly connected with the singlechip without pull-up or pull-down resistors; the first magnetic sensor chip and the second magnetic sensor chip adopt a low-voltage micro-power-consumption high-speed bipolar latch push-pull output type, and are suitable for direct power supply of a battery or a V power supply; the singlechip adopts a micro-power consumption singlechip with a wide voltage range of 2.5V to 5.5V of a power supply.
Furthermore, a first diode and a second diode are further arranged on the circuit board, a 5V external power supply is connected to the power supply of the single chip microcomputer, the first magnetic sensor chip and the second magnetic sensor chip through the first diode, and a 3.6V battery power supply is connected to the power supply of the single chip microcomputer, the first magnetic sensor chip and the second magnetic sensor chip through the second diode.
Furthermore, the chip on the circuit board and the encoder chip are directly powered by 5V external power without consuming the electric energy of a battery.
(III) advantageous effects
The utility model discloses an absolute value encoder, simple structure, production is easy, and the reliability is high, power saving more.
Drawings
Fig. 1 is a front distribution diagram of the circuit device of the present invention.
Fig. 2 is a back distribution diagram of the circuit device of the present invention.
Fig. 3 is a schematic diagram of a complete circuit according to 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 accompanying drawings of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 3, an absolute value encoder in the present embodiment includes: the circuit board 1, the single chip microcomputer 2, the first magnetic sensor chip 3, the second magnetic sensor chip 4 and the magnetic encoder chip 9 are arranged on the front surface of the circuit board 1, the first magnetic sensor chip 3 and the second magnetic sensor chip 4 are arranged on a circumference with the diameter of 6-8mm and taking the center of the circuit board 1 as the circle center, and the difference of the circumferential angles of the first magnetic sensor chip 3 and the second magnetic sensor chip 4 is 90 degrees; a magnetic encoder chip 9 is arranged in the center of the back side of the circuit board 1; the first magnetic sensor chip 3 and the second magnetic sensor chip 4 adopt low-voltage micro-power-consumption magneto-resistance effect sensor chips, the singlechip chip of the singlechip 2 adopts a micro-power-consumption singlechip chip, output pins of the first magnetic sensor chip 3 and the second magnetic sensor chip 4 are directly connected with the singlechip 2 without a pull-up resistor or a pull-down resistor, the first magnetic sensor chip 3 and the second magnetic sensor chip 4 adopt a low-voltage micro-power-consumption high-speed bipolar latch push-pull output type, and the magnetic sensor chip is suitable for direct power supply of a battery or a 5V power supply; the singlechip 2 adopts a micro-power consumption singlechip with a wide voltage range of 2.5V to 5.5V of a power supply.
The circuit board 1 is further provided with a first diode 5, a second diode 6, a 5V external power supply is connected to the power supply of the single chip microcomputer 2, the first magnetic sensor chip 3 and the second magnetic sensor chip 4 through the first diode 5, and a 3.6V battery power supply is connected to the power supply of the single chip microcomputer 2, the first magnetic sensor chip 3 and the second magnetic sensor chip 4 through the second diode 6. The 5V power supply and the 3.6V battery power supply are seamlessly connected for supplying power, so that the simple power circuit almost has no electric energy leakage consumption, the 485 chip 10 and the encoder chip 9 on the circuit board 1 are directly supplied with power by 5V external power, and the electric energy of the battery is not consumed.
The details of the circuit elements of the present invention will be described in detail with reference to fig. 1 to 3:
referring to fig. 1 and 2, the complete circuit element includes a circuit board 1, a micro-power consumption single chip microcomputer 2, a first magnetic sensor chip 3, a second magnetic sensor chip 4, a 5V power supply first diode 5, a 3.6V power supply second diode 6, a first resistor 7, a second resistor 8, a magnetic encoder chip 9, a communication chip 10, a reset capacitor 11, a third resistor 12, a fourth resistor 13, a programming debugging socket 14 and an external power supply battery communication line connection socket 15; further comprising: the device comprises a single 5V power supply discharge resistor, 2 485 chip bias resistors, a single 485 chip load resistor, 3 TVS diodes for 485 chip protection, a plurality of 5V power supply filter capacitors, a single chip microcomputer and a plurality of Hall element filter capacitors.
Referring to fig. 3, the 5V external power supply receives singlechip 2 through second resistance 8, be used for judging whether the 5V power supply is opened, 3.6V is through first resistance 7 lug connection singlechip 2, be used for judging whether the battery is normal, do not pass through the operational amplifier circuit, the static consumption of operational amplifier circuit itself has been avoided, encoder chip 9 and singlechip 2 are connected with the SPI mode, read the absolute position of single circle, 485 chip 10's 1 st foot is received the foot and is passed through fourth resistance 13 and connect singlechip 2, 485 chip 10's transmission foot lug connection singlechip 2, the control foot is also lug connection singlechip 2, socket 14 is used for downloading and debugging program, socket 15 is used for external 5V power supply and 3.6V battery and communication signal line, reset capacitor 11 is used for singlechip 2 power-on reset.
The utility model discloses an absolute value encoder, simple structure, production is easy, and the reliability is high, power saving more.
It is to be understood that the exemplary embodiments herein are illustrative and not restrictive; although the embodiments of the present invention have been described with reference to the accompanying drawings, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (3)
1. An absolute value encoder comprising: circuit board (1), singlechip (2), first magnetic sensor chip (3), second magnetic sensor chip (4), magnetic encoder chip (9), its characterized in that: the first magnetic sensor chip (3) and the second magnetic sensor chip (4) are arranged on the front surface of the circuit board (1), and the difference between the circumferential angles of the first magnetic sensor chip (3) and the second magnetic sensor chip (4) is 90 degrees on the circumference of 6-8mm in diameter with the center of the circuit board (1) as the circle center; a magnetic encoder chip (9) is arranged in the center of the back side of the circuit board (1); the first magnetic sensor chip (3) and the second magnetic sensor chip (4) adopt low-voltage micro-power-consumption magnetoresistive effect sensor chips, the singlechip chip of the singlechip (2) adopts a micro-power-consumption singlechip chip, and output pins of the first magnetic sensor chip (3) and the second magnetic sensor chip (4) are directly connected with the singlechip (2) without pull-up or pull-down resistors; the first magnetic sensor chip (3) and the second magnetic sensor chip (4) adopt a low-voltage micro-power-consumption high-speed bipolar latch push-pull output type, and are suitable for being directly supplied with power by a battery or a 5V power supply; the single chip microcomputer (2) adopts a micro-power consumption single chip microcomputer with a wide voltage range from 2.5V to 5.5V of a power supply.
2. An absolute value encoder according to claim 1, characterized in that: the circuit board (1) is further provided with a first diode (5) and a second diode (6), a 5V external power supply is connected to the power supply of the single chip microcomputer (2), the first magnetic sensor chip (3) and the second magnetic sensor chip (4) through the first diode (5), and a 3.6V battery power supply is connected to the power supply of the single chip microcomputer (2), the first magnetic sensor chip (3) and the second magnetic sensor chip (4) through the second diode (6).
3. An absolute value encoder according to claim 2, characterized in that: the 485 chip (10) and the encoder chip (9) on the circuit board (1) are directly powered by 5V external power without consuming battery power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123282003.3U CN216593457U (en) | 2021-12-24 | 2021-12-24 | Absolute value encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123282003.3U CN216593457U (en) | 2021-12-24 | 2021-12-24 | Absolute value encoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216593457U true CN216593457U (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123282003.3U Active CN216593457U (en) | 2021-12-24 | 2021-12-24 | Absolute value encoder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216593457U (en) |
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2021
- 2021-12-24 CN CN202123282003.3U patent/CN216593457U/en active Active
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