Resolvers
Size 21
Low-Cost Brushless Pancake Resolvers
Rugged, reliable - ideal for demanding environments. Brushless resolvers provide accurate position and velocity feedback as well as commutation in precision equipment, without the structural or temperature restrictions imposed by other electronic feedback devices. They are resistant to the shock and vibration levels often encountered in industrial and instrument applications.
These low cost brushless resolvers are available in standard sizes or with custom modifications. Our Engineering Department is available for consultation to help tailor a brushless resolver to fit your needs.
| Parameter | JSSB-21-B-02J | JSSB-21-B-04J | JSSB-21-B-03J | JSSB-21-F-06E |
|---|---|---|---|---|
| Primary | Rotor | Rotor | Rotor | Rotor |
| Speed | One | One | One | One |
| Input Voltage | 7.5 Vrms 6.6 KHz |
6 Vrms 1.2 KHz |
4Vrms 5 KHz |
7 Vrms 10 KHZ |
| Input Current | 55 mA Max. | 10 mA Max. | 25 mA Max. | 50 mA Max. |
| Input Power | 0.22 watt max. | 0.03 watt | 0.05 watt | 0.17 watt |
| Transformation Ratio (±10%) | 1.0 | 0.46 | 0.5 | 0.5 |
| Phase Shift | -14.5° | 21° | -7.5° | -7° |
| Impedance -Zro -Zso -Zrs |
100 + j125 862 + j1760 90 + j120 |
505 + j59 1120 + j975 520 + j505 |
115 + j150 350 + j620 105 + j145 |
100 + j140 190 + j300 83 + j130 |
| DC Resistance -Stator -Rotor |
290 ohms 25 ohms |
675 ohms 200 ohms |
145 ohms 31 ohms |
24 ohms 55 ohms |
| Null Voltage | 30 mV | 30 mV | 20 mV | 30 mV |
| Electrical Error † | ±21 minutes£ | ±21 minutes* | ±15 minutes | ±21 minutes* |
| Output Voltage | 7.5 Vrms | 2.76 Vrms | 2 Vrms | 3.5 Vrms |
| Drawing | C | C | C | ** |
| Typical performance characteristics at 25°C † Higher accuracies available *± 21 minutes max with 30 minutes max spread £ 20 minutes spread |
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| Parameter | JSMB-21-B-06J | JSMB-21-B-04J | JSMB-21-B-05J | JSMB-21-B-07J |
|---|---|---|---|---|
| Primary | Rotor | Rotor | Rotor | Rotor |
| Speed | Four | Three | Two | Two |
| Input Voltage | 7.5 Vrms 4 KHz |
7.5 Vrms 4 KHz |
7.5 Vrms 4 KHz |
7 Vrms 4 KHZ |
| Input Current | 70 mA Max. | 66 mA Max. | 58 mA Max. | 2.5 mA Max. |
| Input Power | 0.225 watt | 0.29 watt | 0.26 watt | 0.007 watt |
| Transformation Ratio (±10%) |
1.0 | 1.0 | 1.0 | 0.5 |
| Phase Shift | 12° | 4° | 6° | -8° |
| Impedance -Zro -Zso -Zrs |
70 + j110 730 + j1400 67 + j100 |
85 + j100 1070 + j1760 80 + j94 |
75 + j105 600 + j985 68 + j92 |
3100 + j5800 1300 + j2800 2600 + j5220 |
| DC Resistance -Stator -Rotor |
450 ohms 25 ohms |
590 ohms 25 ohms |
360 ohms 25 ohms |
444 ohms 856 ohms |
| Null Voltage | 30 mV | 30 mV | 30 mV | 20 mV |
| Electrical Error † | ±10 minutes | ±10 minutes | ±10 minutes | ±10 minutes |
| Output Voltage | 7.5 Vrms | 7.5 Vrms | 7.5 Vrms | 3.5 Vrms |
| Drawing | C | C | C | C |
| Typical performance characteristics at 25°C † Higher accuracies available |
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Low Cost Brushless Pancake Resolver Data Sheet
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