| 摘要 |
A diode driver circuit having low power consumption. A differential amplifier (17) receives phase inverted signals (a, a'). During a first phase switch, a low impedance circuit (9) is driven to provide a reverse voltage which switches the driven diode (13) from forward bias to reverse bias while discharging the forward charge stored therein. During this time, the constant current circuit (11) is cut off due to the charging of the capacitor (10). When a second phase switch occurs, the capacitor (10) discharges, causing the constant current circuit (11) to provide an excess current which discharges the reverse stored charge of diode (13) and switches the diode from reverse bias back to forward bias.
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