DC-Bus 1 VDDA 13 VZ = 5.1 V CA1 ROFF + D Q1 OUTA 8 V V–A RON G CIN 2 12 S CA2 VSSA RZ 3 11 SW 4 5 VDDB 10 6 OUTB 9 VSSB 78 D Q2 G S 図 8-2. Negative Bias with Zener Diode on Iso-Bias Power Supply Output 32 資料に関