SPICE MODEL of RF-270RH-1.5V in SPICE PARK. English Version is http://www.spicepark.net. Japanese Version is http://www.spicepark.com by Bee Technologies.

1. Device Modeling Report
COMPONENTS: SOLAR MOTOR
PART NUMBER: RF-270RH
MANUFACTURER: TAMIYA
REMARK: SOLAR CELL =1.5VDC
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 Noload
Circuit simulation result
3.0A 3.0V
1 2
2.5A 2.5V
2.0A 2.0V
1.5A 1.5V
1.0A 1.0V
0.5A 0.5V
0A 0V
-0.5A -0.5V
>>
-1.0A -1.0V
-100ms 0s 100ms 300ms 500ms 700ms 900ms
1 I(V2) 2 V1(X_U2.E_E_EMF)
Time
Evaluation circuit
V2
V1 = 0
0Vdc
V2 = 1.5
U2
TD = 0
+ RF-270RH_1_5
TR = 6.4m
V1
- IL = 0.125
TF = 10n
PW = 10
PER = 100
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
3.0A 3.0V
1 2
2.5A 2.5V
2.0A 2.0V
1.5A 1.5V
1.0A 1.0V
0.5A 0.5V
0A 0V
-0.5A -0.5V
>>
-1.0A -1.0V
-100ms 0s 100ms 300ms 500ms 700ms 900ms
1 I(V2) 2 V1(X_U2.E_E_EMF)
Time
Evaluation circuit
V2
V1 = 0
0Vdc
V2 = 1.5
U2
TD = 0
+ RF-270RH_1_5
TR = 6.4m
V1
- IL = 0.600
TF = 10n
PW = 10
PER = 100
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