Electrical Engineering Glossary Definition for PFM

Definition

脉冲频率调制：一种脉冲调制技术，调制信号的频率随输入信号幅值而变化，其占空比不变。由于调制信号通常为频率变化的方波信号，因此，PFM也叫做方波FM。

Synonyms

• 脉频调制

See Also

• PCM
• PWM
• FM
• 脉冲幅度调制
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