| 摘要 |
<p>PURPOSE:To provide a charging display function by cutting off an excitation control transistor and applying exciting current to an excitation coil through a charging display lamp at the continuity time of a charging display lamp transistor. CONSTITUTION:Exciting current is fed to an excitation coil 3 form a full wave rectifier 4 through the excitation control transistor 11 of a voltage regulating circuit 5a and the display trnasistor 22 of a charging display circuit 5b to light up a charging display lamp 6 is set up. At the continuity time of the display transistor 22, the excitation control transistor 11 is cut off and exciting current is applied to the excitation coil 3 through an initial excitation resistor 19. Accordingly, the display transistor 22 connot be used as both the burning circuit of the charging display circuit and the initial excitation current supply circuit, which enables circuit simplification. The voltage breakdown due to a key switch 7 and wiring resistors cannot be decreased. A charger with the charging display function which displays the abnormality time with the charging display lamp can be obtained.</p> |
