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Device Modeling Report




 COMPONENTS : CHOKE COIL
 PART NUMBER : 8RHB
 VALUE : 220 uH
 CURRENT MAX : 0.7 A
 MANUFACTURER : TOKO




              Bee Technologies Inc.


All Rights Reserved Copyright (c) Bee Technologies Inc. 2004
Theory: Auto Balancing Bridge Method


Optimization of Simulation
Range of adjustment Frequency:100 to100M(Hz)
Frequency vs.|Z| and Frequency vs.θz Characteristic


Attention)
Please use SPICE MODEL within the range from 100 to 100M(Hz)




                     L1
                    C1
                    R1




              All Rights Reserved Copyright (c) Bee Technologies Inc. 2004
Equivalent circuit




                All Rights Reserved Copyright (c) Bee Technologies Inc. 2004
Frequency vs. |Z| Characteristic

Evaluation circuit


                            R3                  V1                 1

                            1k
                                                0Vdc




                                                                       U1
                    I1
           1Aac                                                        8RHB
           0Adc




                                            0




Simulation resuit




                                                                Simulation




              All Rights Reserved Copyright (c) Bee Technologies Inc. 2004
Comparison Table


                           |Z|(ohm) :               |Z|(ohm) :
  Frequency (Hz)                                                             % Error
                          Measurement               Simulation

        100                 366.056 m                367.478 m               -0.388

       100K                   130.962                 125.402                 4.246

        1M                   1.37192 k                1.3656 k                0.461

       10M                   1.70162 k                 1.752 k               -2.961



                          Measurement               Simulation               % Error

     F SRF (Hz)               3.508 M                 3.482 M                 0.741
     |Z| (ohm),
       at F SRF              106.695 k               106.751 k               -0.052




              All Rights Reserved Copyright (c) Bee Technologies Inc. 2004

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SPICE MODEL of 8RHB_220uH_0.7A in SPICE PARK

  • 1. Device Modeling Report COMPONENTS : CHOKE COIL PART NUMBER : 8RHB VALUE : 220 uH CURRENT MAX : 0.7 A MANUFACTURER : TOKO Bee Technologies Inc. All Rights Reserved Copyright (c) Bee Technologies Inc. 2004
  • 2. Theory: Auto Balancing Bridge Method Optimization of Simulation Range of adjustment Frequency:100 to100M(Hz) Frequency vs.|Z| and Frequency vs.θz Characteristic Attention) Please use SPICE MODEL within the range from 100 to 100M(Hz) L1 C1 R1 All Rights Reserved Copyright (c) Bee Technologies Inc. 2004
  • 3. Equivalent circuit All Rights Reserved Copyright (c) Bee Technologies Inc. 2004
  • 4. Frequency vs. |Z| Characteristic Evaluation circuit R3 V1 1 1k 0Vdc U1 I1 1Aac 8RHB 0Adc 0 Simulation resuit Simulation All Rights Reserved Copyright (c) Bee Technologies Inc. 2004
  • 5. Comparison Table |Z|(ohm) : |Z|(ohm) : Frequency (Hz) % Error Measurement Simulation 100 366.056 m 367.478 m -0.388 100K 130.962 125.402 4.246 1M 1.37192 k 1.3656 k 0.461 10M 1.70162 k 1.752 k -2.961 Measurement Simulation % Error F SRF (Hz) 3.508 M 3.482 M 0.741 |Z| (ohm), at F SRF 106.695 k 106.751 k -0.052 All Rights Reserved Copyright (c) Bee Technologies Inc. 2004