參數(shù)資料
型號(hào)： ATS643LSH
廠商： Allegro MicroSystems, Inc.
英文描述： Self-Calibrating, Zero-Speed Differential Gear Tooth Sensor with Continuous Update
中文描述： 自校準(zhǔn)，零的高速連續(xù)更新差動(dòng)齒輪齒傳感器
文件頁(yè)數(shù)： 10/16頁(yè)
文件大?。?/td> 501K
代理商： ATS643LSH
10
ATS643-DS, Rev. 1
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
115 Northeast Cutoff, Box 15036
Allegro MicroSystems, Inc.
Self-Calibrating, Zero-Speed Differential GTS with Continuous Update
ATS643LSH
V
PROC
is directly proportional to the magnetic flux density, B,
induced by the target and sensed by the Hall elements. When
V
PROC
transitions through a switchpoint from the appropriate
higher or lower level, it triggers sensor switch turn-on and turn-
off. As shown in figure 3, when the switch is in the off state, as
V
PROC
rises through a certain limit, referred to as the
operate
point
, B
OP
, the switch toggles from off to on. When the switch is
in the on state, as V
PROC
falls below B
OP
to a certain limit, the
B
HYS(#1)
Pk
(#4)
Pk
(#5)
Pk
(#7)
Pk
(#9)
Pk
(#2)
Pk
(#3)
Pk
(#1)
Pk
(#6)
Pk
(#8)
V
P
(
B
RP(#1)
B
OP(#1)
B
RP(#2)
B
RP(#3)
B
OP(#3)
B
RP(#4)
B
OP(#4)
B
HYS(#4)
B
HYS(#3)
B
HYS(#2)
t+
V+
B
OP(#2)
(A) TEAG varying; cases such as
eccentric mount, out-of-round region,
normal operation position shift
(B) Internal analog signal, V
PROC
,
typically resulting in the sensor
0
360
Target Rotation (°)
Hysteresis Band
(Delimited by switchpoints)
V
P
V+
Larger
TEAG
Smaller
TEAG
Sensor
Target
Larger
TEAG
Target
Sensor
Smaller
TEAG
Smaller
TEAG
release point
, B
RP
, the switch toggles from on to off.
As shown in panel C of figure 4, threshold levels for the ATS643
switchpoints are established dynamically as function of the
peak input signal levels. The ATS643 incorporates an algorithm
that continuously monitors the system and updates the switch-
ing thresholds accordingly. The switchpoint for each edge is
determined by the detection of the previous two edges. In this
manner, variations are tracked in real time.
Figure 4. The Continuous Update algorithm allows the Allegro sensor to immediately interpret and adapt to significant variances in the magnetic field
generated by the target as a result of eccentric mounting of the target, out-of-round target shape, elevation due to lubricant build-up in journal gears, and
similar dynamic application problems that affect the TEAG (Total Effective Air Gap). The algorithm is used to dynamically establish and subsequently
update the device switchpoints (B
and B
). The hysteresis, B
, at each target feature configuration results from this recalibration, ensuring that
it remains properly proportioned and centered within the peak-to-peak range of the internal analog signal, V
PROC
.
As shown in panel A, the variance in the target position results in a change in the TEAG. This affects the sensor as a varying magnetic field, which
results in proportional changes in the internal analog signal, V
, shown in panel B. The Continuous Update algorithm is used to establish accurate
switchpoints based on the fluctuation of V
PROC
, as shown in panel C.
(C) Referencing the internal analog signal, V
PROC
, to continuously update device response
B
HYS
Switchpoint
Determinant
Peak Values
Pk
(#1)
, Pk
(#2)
Pk
(#2)
, Pk
(#3)
Pk
(#3)
, Pk
(#4)
Pk
(#4)
, Pk
(#5)
Pk
(#5)
, Pk
(#6)
Pk
(#6)
, Pk
(#7)
Pk
(#7)
, Pk
(#8)
Pk
(#8)
, Pk
(#9)
1
B
OP(#1)
B
RP(#1)
B
OP(#2)
B
RP(#2)
B
OP(#3)
B
RP(#3)
B
OP(#4)
B
RP(#4)
2
3
4
相關(guān)PDF資料
PDF描述
ATS643LSH-I1 Self-Calibrating, Zero-Speed Differential Gear Tooth Sensor with Continuous Update
ATS643LSHTN-I1-T Self-Calibrating, Zero-Speed Differential Gear Tooth Sensor with Continuous Update
ATS643LSHTN-I2-T Self-Calibrating, Zero-Speed Differential Gear Tooth Sensor with Continuous Update
ATS645LSHTN-I1-T True Zero Speed Miniature Gear Tooth Sensor
ATS645LSHTN-I2-T True Zero Speed Miniature Gear Tooth Sensor
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ATS643LSH-I1 制造商:ALLEGRO 制造商全稱:Allegro MicroSystems 功能描述:Self-Calibrating, Zero-Speed Differential Gear Tooth Sensor with Continuous Update
ATS643LSH-I1TN 功能描述:IC SENSOR GEAR TOOTH 4-SIP RoHS:否 類別:傳感器，轉(zhuǎn)換器 >> 磁性 - 霍爾效應(yīng)，數(shù)字式開(kāi)關(guān)，線性，羅盤 (IC) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 傳感范圍:20mT ~ 80mT 類型:旋轉(zhuǎn) 電源電壓:4.5 V ~ 5.5 V 電流 - 電源:15mA 電流 - 輸出（最大）:- 輸出類型:數(shù)字式，PWM，8.5 位串行 特點(diǎn):可編程 工作溫度:-40°C ~ 150°C 封裝/外殼:20-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR
ATS643LSH-I2 功能描述:IC SENSOR GEAR TOOTH 4-SIP RoHS:否 類別:傳感器，轉(zhuǎn)換器 >> 磁性 - 霍爾效應(yīng)，數(shù)字式開(kāi)關(guān)，線性，羅盤 (IC) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 傳感范圍:20mT ~ 80mT 類型:旋轉(zhuǎn) 電源電壓:4.5 V ~ 5.5 V 電流 - 電源:15mA 電流 - 輸出（最大）:- 輸出類型:數(shù)字式，PWM，8.5 位串行 特點(diǎn):可編程 工作溫度:-40°C ~ 150°C 封裝/外殼:20-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR
ATS643LSHTN-I1-T 功能描述:IC SENSOR GEAR TOOTH 4-SIP RoHS:是 類別:傳感器，轉(zhuǎn)換器 >> 磁性 - 霍爾效應(yīng)，數(shù)字式開(kāi)關(guān)，線性，羅盤 (IC) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 傳感范圍:20mT ~ 80mT 類型:旋轉(zhuǎn) 電源電壓:4.5 V ~ 5.5 V 電流 - 電源:15mA 電流 - 輸出（最大）:- 輸出類型:數(shù)字式，PWM，8.5 位串行 特點(diǎn):可編程 工作溫度:-40°C ~ 150°C 封裝/外殼:20-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR
ATS643LSHTN-I2-T 功能描述:IC SENSOR GEAR TOOTH 4-SIP RoHS:是 類別:傳感器，轉(zhuǎn)換器 >> 磁性 - 霍爾效應(yīng)，數(shù)字式開(kāi)關(guān)，線性，羅盤 (IC) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 傳感范圍:20mT ~ 80mT 類型:旋轉(zhuǎn) 電源電壓:4.5 V ~ 5.5 V 電流 - 電源:15mA 電流 - 輸出（最大）:- 輸出類型:數(shù)字式，PWM，8.5 位串行 特點(diǎn):可編程 工作溫度:-40°C ~ 150°C 封裝/外殼:20-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:20-SSOP 包裝:Digi-Reel® 其它名稱:AS5132-HSST-500DKR
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