diff --git a/RP2350ZERO/utils.py b/RP2350ZERO/utils.py
index 9dd4ba3..dc61c82 100644
--- a/RP2350ZERO/utils.py
+++ b/RP2350ZERO/utils.py
@@ -213,7 +213,7 @@ class Servo:
             self.pwm = PWM(Pin(pin, Pin.OUT))
             # 设置频率
             self.pwm.freq(frequency)
-            self.pwm.duty_ns(0)  # 关闭输出
+            self.pwm.duty_ns(0)  # 关闭PWM信号输出
         except Exception as exception:
             raise RuntimeError(f"初始化PWM发生异常，{str(exception)}") from exception