Design of Large-power Voice Annunciator for Shipping Based on ISD1420
Cui Chun-shu · Journal of Yanbian University · 2008
The voice recorder chip ISD1420 and MCU AT89C2051 are used for the design of the Large-power annunciator for shipping.The annunciator improves the utilize of memory with the way of elasticity record, simple operation,convenient use.It is adopted with L4960 single Switching-mode power supply(SMPS) and can steadily work within the width of 12～40 V.It has the function of linkage and synchronization of several annunciators.