DC to DC Converter Circuits

By | May 7, 2016

60-mA current-source feeds telecomm lines –  12/18/97 EDN-Design Ideas An isolated 60-mA current source provides 120V of compliance for use in telecommunication interfaces (Figure 1). Constant-current line feed provides dc power for downstream circuitry independent of line length and provides inherent short-circuit protection. The key to isolated…. [Design Idea by Kurk Mathews, Linear Technology Corp, Milpitas, CA]

60V 3A Step-Down DC/DC Converter has Low Dropout & 100µA Quiescent Current –  DN352  Design Notes (Linear Technology)….[App Note]

60V Step-Down DC/DC Converter has Only 100µA Quiescent Current –  DN1007)  Design Notes (Linear Technology)

Battery Charger Circuit – The circuit can be used to charge 12V lead acid batteries.

3.3V / 5V Regulated Power Supply Circuit – This circuit can be used to power your digital breadboard circuits.

+9 Volt*and*  9 Volt from One Battery! –   MAX1044 is a charge pump converter it uses a capacitor as a “bucket” to pump charge from one place to anor. It can be used to generate negative voltage easily.

±12V supply accepts 9 to 30V inputs –  12/04/97 EDN-Design Ideas….For applications that require symmetric supply voltages from a wide input range, the switch-mode supply in Figure 1 delivers more than 3.6W at 12V and operates from inputs of 9 to 30V. Over this input range, efficiency.… [Design Idea by Ron Young, Maxim Integrated Products, Sunnyvale, CA]

+5V Power Supply Circuit –  This circuit is a small +5V power supply, which is useful when experimenting with digital electronics. Small inexpensive wall….[Tomi Engdahl’s design]

+30V Power Supply with +5V –  I made  power supply which makes about +30V with +5V power supply. Direct current is changed into  alternating current by  oscillator which used  Schmitt trigger inverter which has  hysteresis….[Designed by Seiichi Inoue]

‘Always on’ for PCs –  Many enthusiasts will be using their PCs as data loggers, controllers or as web servers. In these cases it is important that….must register on this site…. [Published in Elecktor July/August 2010]

+/-5V Power Supply Operation with TC7106A/7107A TC7106A/7107A –  Microchip Application Note Published 12-Nov-02….[App Note]

.4 watt 100% Radio Shack DC-DC Converter –  This DC-DC converter (“inverter”) needs nothing but unmodified Radio Shack parts. You don’t need to build or wind any coils or transformers…….

0.2V Supply Voltage Nanopower Inverter Circuit –  Circuit Ideas for Designers Application Notes Advanced Linear Devices, Inc….[App Note]

0.2V Supply Voltage Nanopower Two-Inputs NOR & NAND gates –  Circuit Ideas for Designers Application Notes Advanced Linear Devices, Inc….[App Note]

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