Epson S1F70000 EPSON, S1F76600 Series, Positive Voltage Conversion, Simultaneous Voltage Conversion

Positive Voltage Conversion

Diodes can be added to a circuit connected in parallel to make a negative voltage positive.

VDD = 0 V

5 V

VI = –5 V

VO' = 3.8 V

1		8	C2
				+
			10∝F
1MΩ	2	7
	3	6	C1
	4	5		+
			10∝F

S1F76600 Series

S1F76600 Series

Simultaneous Voltage Conversion

Combining a multiplier circuit with a positive voltage conversion circuit generates both –10 and 3.8 V outputs from a single input.

VDD = 0 V

5 V

VI = –5 V

VO2 = 3.8 V

1		8				C4
			+		C2		+
						10∝F
	2	7		10∝F
1MΩ				VO1 = –10 V
	3	6			C1	C3
					∝
			+
	4	5		10 F			+
						10∝F

Potential levels

VO2 = 3.8 V

VDD = 0 V

VI= –5 V

VO1 = –10 V

S1F70000 Series Technical Manual

EPSON 1–9