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Anonymous users2024-02-051. Bipolar Hall-effect switch (digital output).
Bipolar Hall is specifically divided into bipolar Hall switch without latching.
and bipolar latching Hall switches.
Bipolar Hall-effect switches are usually at the South Pole magnetic field strength.
Open when sufficient, and turn off when the North Pole magnetic field is strong enough, but if the magnetic field is removed, it is a random output, which may be on or off. Bipolar latching Hall-effect switches are usually turned on when the magnetic field strength at the south pole is sufficient and closed when the magnetic field strength at the north pole is sufficient, but if the magnetic field is removed, the output state will not be changed. These Hall-effect switches can be magnetically actuated using a north-south alternating magnetic field, a multipole ring magnet.
2. Bipolar latching Hall-effect switch (digital output).
When the magnetic field is placed at the N-pole (or S-pole), it will be turned on and will remain on after the magnetic field is removed; It will only be turned off when it is placed at the S pole (or N pole) again, and the magnetic field will continue to remain closed after it is removed, knowing that the next time the magnetic field changes, this characteristic of maintaining the previous state is the latching characteristic, and this type of Hall benefit switch is the bipolar latching Hall-effect switch.
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Anonymous users2024-02-04The latch must be bipolar, but bipolar is not necessarily a latch. Some chip factories define bipolar as when the magnetic field is removed, Hall is closed, that is, the negative BRP is removed, and the removal here I think there should be a certain time limit. At the same time, the bipolar BOP and BRP are not necessarily symmetrical with respect to the longitudinal axis, but the latching is symmetrical.
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Anonymous users2024-02-03There is generally no big difference between bipolar and latched types.
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Anonymous users2024-02-021. The latching type Hall switch is: when the magnet S is extremely close to the IC, the magnetic field B > BOP, the IC output is ON (low level 0), and after the magnet leaves, the output is latched. When the magnet N is extremely close to the IC, the magnetic field B
2. The bipolar Hall switch is: when the magnet S is close to the IC, the magnetic field B is > BOP, and the IC output is ON (low level 0), and when the magnet N is close to the IC, the magnetic field is B
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Anonymous users2024-02-01Definition of bipolar (with latching) locking Hall switch: When the south pole (S pole) of the applied magnetic field is close to the marked side of the Hall circuit housing, the direction of the magnetic field acting on the Hall circuit is positive, and the north pole is negative when it is close to the sign surface. The features of locking Hall switch circuits are:
When the external field B increases positively, it reaches BOP
, the circuit is on, after which regardless of b
Increase or decrease, or even b
In addition, the circuit is kept in the conduction state, and only when the negative BRP is reached, the shout is changed to the cut-off state, so it is called a locking Hall switch element.
It is mainly used for brushless motors, Tamkai contactless switches, brushless DC fans, etc.
Bipolar latching type Horang Yanhuer circuit.
Model. Operating voltage.
vdd（v）
Operating current. idd（ma）
Work point. bop(gs)
Release point. brp(gs)
Operating temperature. ta(℃)
Form factor. Typical Applications.
hal41f
to-92s
Brushless DC motor, speed detection.
hal732
sot-23
Highly sensitive contactless switch, brushless motor.
hal1881
sot-23
Highly sensitive contactless switch, brushless motor.
hal513
sot-89
Highly sensitive contactless switch, brushless motor. ah512
TO-92 high-sensitivity contactless switch, brushless motor.
The linear Hall element changes with the change of the magnetic field, and the magnitude of the output signal changes linearly with the magnetic field. It is mainly used for current, voltage, power, magnetic field detection, etc.
Linear Hall. Model.
Operating voltage. vdd（v）
Magnetic field range. gs
Output voltage. VOT(V) sensitivity. s
mv g operating temperature.
ta( ) package.
Typical Applications. hal95a
to-92s
Angle detection. Such as: car throttle. es49e
to-92s
Angular measurements. Such as: electric car handlebar.
Gear sensors.
Model. Operating voltage.
vdd（v）
Sensing distance. mm
Frequency. khz
Operating temperature. ta(℃)
Form factor. Trigger form.
hal1800
Steel gears, racks, soft magnetic materials or other magnetic materials.
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