A Switch Mode Power Supply circuit collection from Linear Technology. It covers 12 basic SMPS circuit categories: Battery, Boost, Buck, Buck-Boost, Flyback, Forward, High Voltage, Multioutput, Off Line, Preregulator, Switched Capacitor and Telecom.
Tag Archives: SMPS
App note: Switching regulators for poets
The basics of SMPS design, written by the late analog guru Jim Williams: A problem is that while everyone agrees that working switching regulators are a good thing, everyone also agrees that they are difficult to get working. Switching regulators, with their high efficiency and small size, are increasingly desirable as overall package sizes shrink. […]
Super Boost 3.6A USB charger based on LM2700
Scrawny 500mA USB charger insufficient for your hunger for power? Try this 3.6 amp USB charger based on the LM2700 boost switch-mode IC. This design is inspired by the Minty Boost but it fixes some of the issues that I had with it. The Minty Boost is limited to 600mA due to the LT1302 chip. […]
Bus Pirate PIC programmer update
PIC 12/16/18/ds30 programming support for the Bus Pirate is progressing. Sean Nelson, a regular contributor to the Bus Pirate project, submitted a patch that adds serial port support to usbpicprog. The Linux patch compiles, but the Windows port still has some bugs. The picture shows our prototype 13volt power supply for the PIC programmer. It’s […]
Bus Pirate high voltage supply with only 6 parts
We used the Bus Pirate and 6 common components to multiply 5volts to over 120volts with a boost converter, a type of switched-mode power supply. Similar circuits are commonly used to power 180volt nixie tubes from low voltage power supplies. This circuit is a simple way to build your first SMPS, but be careful because […]