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功放模块损坏的原因复杂多样,但就其实质来说,大致可归纳为五类,即推动信号不正确(包括幅度和相位不正确),控制信号不正确(包括幅度和相位不正确),功放输出电路不正确,保护电路不正确和冷却系统不正确等五类。文章以上海明珠广播电视科技有限公司生产的TSD-10中波全固态数字调幅发射机为例,论述这五类原因。
The reasons for the damage to the power amplifier module are complex and varied, but in essence, it can be generally classified into five categories: the incorrect signal (including the amplitude and the phase incorrectly), the incorrect control signal (including the incorrect amplitude and phase), the power amplifier Output circuit is not correct, the protection circuit is incorrect and the cooling system is incorrect, and other five categories. The article takes the TSD-10 all-solid-state digital amplitude modulation transmitter produced by Shanghai Pearl Broadcasting and Television Technology Co., Ltd. as an example, and discusses the five reasons.