| 摘要 |
A servomotor system is disclosed which may be used for an antenna rotator or the like with a bidirectional AC motor controlled as to direction by a low voltage relay having double throw contacts. A DC bridge is energized from a rectifier and has an output to a differential amplifier which energizes a high voltage relay and a low voltage relay in selective conditions. For bridge output in a first direction of unbalance, both relays are energized and for bridge output in the opposite direction of unbalance, only the high voltage relay is energized to provide energization to the entire servomotor system.
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