Figure 67 Negative Doubler with Regulator

Figure 68. Negative Voltage Converter

AN30 F67

AN30 F68

R1 200n

R1 200n

2V|n

3V TO 18V

REQUIRED FOR

AN30 F69

Figure 69. Voltage Doubler

2V|n

3V TO 18V

REQUIRED FOR

AN30 F69

Figure 69. Voltage Doubler an30fa

Figure 70. Voltage Doubler

AN3ÜF7U

Figure 71. Generating CMOS Logic Supply from 2 Mercury Batteries (2.4V to 4.8V)

Figure 70. Voltage Doubler

Figure 71. Generating CMOS Logic Supply from 2 Mercury Batteries (2.4V to 4.8V)

Figure 73. Paralleling for Lower Output Resistance

Figure 73. Paralleling for Lower Output Resistance

Figure 74. Stacking for Higher Voltage

Figure 74. Stacking for Higher Voltage

AN3ÜF7U

an30fa

39k j^AAf

1N914

1N914

•REQUIRED FOR V+ < 3V

Figure 75. Voltage Tripler/Quadrupler

Voltage Tripler

OUTPUT

OUTPUT

Figure 76. Regulated Voltage Up Converter (3V to 5V)

39k j^AAf

2GGk Wr

V+ OSC LV

V0UT

LTC1G44

BOOST CAP+ GND

AN3G F77

1G|F

OUTPUT

+Vout

Figure 78. Dual Output Switched Capacitor Voltage Generator an30fa

AN3GF78

+Vout

Figure 77. Regulated Negative Voltage Converter

Figure 78. Dual Output Switched Capacitor Voltage Generator an30fa

AN3G F77

AN3GF78

Switched Capacitor Converter
Figure 79. Switched Capacitor-Based Converter (6V to ± 7V)

12V|N

12V|n

LT1004 1.2V

REFERENCE

VOUT

LT1004 1.2V

REFERENCE

VOUT

12V|N

: 180pF

ALL DIODES ARE 1N4148 Q1, Q2, Q3 = IRF9531 P-CHANNEL Q4 = IRF533 N-CHANNEL

Figure 80. High Power Switched Capacitor Converter (12V to 5V)

Lin^AB

TECHNOLOGY

J AN30 F80

an30fa

Drag Strut FramingCharge Pump Negative Voltage Generator

Figure B1. Voltage Multiplier (± 5V to ± 15V) Figure B2. Charge-Pump Negative Voltage Generator

Negative Charge Pump Regulator

Figure B3. Charge Pump Voltage Doubler

- 4

5

7

4

1 0 002|i F

a001|F^1M*

499k*

-IN

V|n

OUT

COMP

LT1020

FB

+IN

REF OUT

COMP NPN

-5Vout

AN30 F84 75mA

-5Vout

AN30 F84 75mA

*1% METAL FILM RESISTOR

100k

Figure B4. High Current Switched Capacitor Converter (6V to ± 5V)

an30fa

12v Flyback

Figure 85. Multioutput Flyback Converter (12V to 5V, ± 12V)

*1% FILM RESISTOR L1 = PULSE ENGINEERING, INC #PE-651C PULSE ENGINEERING, INC PO BOX 12235 SAN DIEGO, CA 92112 (619) 268-2400

Figure 85. Multioutput Flyback Converter (12V to 5V, ± 12V)

Electronic Schematic
Figure 86. Multioutput Transformer Coupled Low Quiescent Current Converter (12V to 5V, ± 12V)

an30fa

Figure 87. Basic Flash EPROM VP_P Pulse Generator (5V to 12.75V or 12V)
Battery Charger Circuit Design
Figure 88. High Repetition Rate VP-P Pulse Generator (5V to 12.75V or 12V)

an30fa

Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights.

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