-4-
PT-3085-C
Date:Feb. 2002
Double coil
Application circuits
Specifications of any and all PROLIFIC products described or contained herein stipulate the performance,
characteristics, and functions of the described products in the independent state, and are not guarantees of the
performance, characteristics, and functions of the described products as mounted in the customer's products or
equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should
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Ver.1.5
Hall
IC
Vcc
dc
Gnd
Hin
O2
O1
RD
R1 10K
R2
R1 : depend on Hall IC Spec.
R2 : > 470ohm
Z1,Z2 :18V Zener diode
1
3
5
2
6
4
12V
L1
L2
option
Z1
Z2
RD
R0
Note1
: Z1, Z2 is optional. If the applicated coil generate too large count emf (> 30V),
the Z1 and Z2 must be added. Vz=18V~20V will be recomended.
Note2
: Z1, Z2 can be replaced by C1 and C2 capacitor 1uF~2.2uF/50V
Note3
: R0=1K is recomanded@12V.