SYSTEM FOR DISSIPATING ELECTRICAL CHARGE FROM A CABINET OF AN ELECTRONIC APPARATUS

摘要

A TV RECEIVER (10) HAVING A METAL FRONT CABINET (12) IS PROVIDED WITH A DISCHARGE PATH BETWEEN THE FRONT CABINET AND A GROUND PORTION OF THE TV RECEIVER.THE DISCHARGE PATH INCLUDES A SERIES CIRCUIT IN WHICH A DISCHARGE TUBE (22) IS CONNECTED IN SERIES TO A PARALLEL CIRCUIT (26) OF A FIRST RESISTOR (24) AND A HIGH-VOLTAGE CAPACITOR (25) AND A SECOND RESISTOR (21) THAT IS CONNECTED IN PARALLEL TO THE SERIES CIRCUIT.THE DISCHARGE PATH EFFECTIVELY DISCHARGES A VOLTAGE OCCURRING AT THE FRONT CABINET VIA THE SECOND RESISTOR (21) WHILE PREVENTING A SUDDEN FLOW OF CURRENT AND REDUCING THE INFLUENCE OF STATIC ELECTRICITY. THE SERIES CIRCUIT IN WHICH THE DISCHARGE TUBE (22) IS CONNECTED IN SERIES TO THE PARALLEL CIRCUIT (26) OF THE FIRST RESISTOR (24) AND THE HIGH-VOLTAGE CAPACITOR (25) HAS A FUNCTION OF CAUSING HIGH-VOLTAGE PULSES OCCURRING AT THE GROUND PORTION GND TO ESCAPE TO THE FRONT CABINET WHILE CONVERTING THOSE INTO PULSES HAVING A LOW VOLTAGE LEVEL.(FIG 1)