| 摘要 |
PURPOSE:To prevent a heat generation damage accident by providing output level detecting devices which measure the output of a potential unit power amplifier at all times to the amplifier, and stopping all circuits when one of those detecting devices detects an abnormal signal. CONSTITUTION:The output of a power parallel amplifying circuit 3 is sent to a power composer 4, which performs composition entirely and sends its output to an external load 7. A switch 40 is mounted at the input stage of a power distributing means 2 in front of the circuit 3 and electric feeding to a distributor 2 can be stopped. This switch 40 is driven and controlled by a switch control circuit 41. An OR circuit is used for this circuit 41. Then, if an abnormal signal is sent from one of respective monitor circuits 33, the circuit 41 which inputs it outputs a specific stop signal immediately to turn off the switch 40. Consequently, the abnormal heat generation and damage accident of the compressor 4 are precluded effectively and speedily.
|
