The document is a device modeling report for the RE-260 DC motor manufactured by Mabuchi Motor, detailing voltage and current characteristics under no load and fan load conditions. It includes simulation results and advises using a SPICE model within the frequency range of 40 to 10,000 Hz for accuracy. All content is copyrighted by Bee Technologies Inc. in 2005.

1. Device Modeling Report
COMPONENTS: DC MOTOR
PART NUMBER: RE-260
MANUFACTURER: MABUCHI MOTOR
Bee Technologies Inc.
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

2. Theory: Auto Balancing Bridge Method
Optimization of Simulation
Range of adjustment Frequency:40 to10K(Hz)
Frequency vs.|Z| and Frequency vs.θz Characteristic
Attention)
Please use SPICE MODEL within the range from 40 to 10K(Hz) for best accuracy.
LM
RS
CP
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

3. DC Motor Voltage and Current Characteristics at No load
Circuit simulation result
5.0A
4.0A
3.0A
2.0A
1.0A
0A
-1.0A
-2.0A
-3.0A
-0.1s 0.1s 0.3s 0.5s 0.7s 0.9s
I(V2) V1(X_U1.E_E_EMF)
Time
Evaluation circuit
V2
0Vdc
U1
+ RE-260
V1 - IL = 0.200
3.0Vdc
0
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

4. DC Motor Voltage and Current Characteristics (No load) Reference
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

5. DC Motor Voltage and Current Characteristics at Fan load
Circuit simulation result
5.0A
4.0A
3.0A
2.0A
1.0A
0A
-1.0A
-2.0A
-3.0A
-0.1s 0.1s 0.3s 0.5s 0.7s 0.9s
I(V2) V1(X_U1.E_E_EMF)
Time
Evaluation circuit
V2
0Vdc
U1
+ RE-260
V1 - IL = 1.15
3.0Vdc
0
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005

6. DC Motor Voltage and Current Characteristics (Fan load) Reference
All Rights Reserved Copyright (c) Bee Technologies Inc. 2005