AMS AS5030 운영 매뉴얼 - 페이지 5

{카테고리_이름} AMS AS5030에 대한 운영 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. AMS AS5030 12 페이지. 8 bit programmable magnetic rotary encoder

AS5030 8-bit Programmable Magnetic Rotary Encoder

Adapterboard Operation Manual

4 Operation use cases

4.1

Figure 4: Using the analog output with the adapter board

4.2

Figure 5: Using the PWM output with the adapter board

Revision 1.0, 26.February 2009

The simplest setup to test the AS5030 is to use the

adapter board in standalone mode. A 3-pin header

connector is present on JP2.

A header connector is present on JP2 on pin 1, 2, 3.

Connect a regulated power supply on 5V (pin #2) and

GND (pin #1).

The "Ana" (pin #3) is an analog output, which is an RC

filtered signal of the PWM output of the AS5030. The

external device (AD converter, voltmeter...) connected on

the "Ana" pin should have an input impedance >470k Ω,

otherwise it should be buffered with an op. amp.

By rotating the magnet, a progressive analog voltage

from 0 to 5V can be measured on the "Ana" pin (JP2 #3).

Rotating the magnet clock wise (AS5030 chip on the top

side) increases the Ana voltage, and counter clockwise

will decrease the voltage.

Because of the RC filter, the response time of a jump

359° 0° (5V 0V) and 0° 359° (0V 5V) is 100ms.

Instead of getting a proportional analog voltage

increasing with the magnet's angle on the "Ana" output, a

PWM signal (JP2 pin #5) with a period of 581us, 2.26us

step and 5V pulse voltage can be connected to the

capture/timer input of a microcontroller in order to decode

the angle value.

Figure 6: PWM duty cycle depending on magnet position

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