DC to DC Converter mini Step up Voltage

Here is a DC to DC converter using a standard 12 VAC center tapped power transformer and a single bi-polar NPN transistor….

Here is a DC to DC converter using a standard 12 VAC center tapped power transformer and a single bi-polar NPN transistor. The circuit is not very efficient but will produce a high voltage usable for low power applications. The input battery voltage is raised by a factor of 10 across the transformer and further raised by a voltage tripler consisting of three capacitors and diodes connected to the high voltage side of the transformer. The circuit draws about 40 milliamps and should operate for about 200 hours on a couple of ‘D’ alkaline batteries. Higher voltages can be obtained by reducing the 4.7K bias resistor.

Original scheme edited by Bill Bowden, http://ourworld.compuserve.com/homepages/Bill_Bowden/

LM2597HV - SIMPLE SWITCHER Power Converter Step-Down Voltage Regulator
I like circuit power supply, See to more website. This is IC LM2597HV (Good IC Step-Down Voltage Regulator) Intro detail: The LM2597/LM2597HV series of regulators are monolithic integrat ...
DC-DC Converter Basics
A DC-to-DC converter is a device that accepts a DC input voltage and produces a DC output voltage. Typically the output produced is at a different voltage level than the input. In addition, D ...
5V to 15V Step-Up Converter with IC LT1073
If you want DC converter 5V to 15V Step-Up voltage. I like IC LT1073,It is important part of this circuit. 15V OUTPUT 100mA AT 4.5VIN Detail more, Please read in this image circuit. Re ...
Step up dc converters circuit
This is a circuit that allows you to add a great power, it has many ideas to choose from, some circuits use transistors to make it easy to find and create savings. Step up dc converters Boost ...
LM2577 simple step-up converter 6V to 12V 1A
This step-up converter is intended for use in a '67 Citroen 2CV. This car, and I use the word loosely, has a 6V battery and won't support a modern radio that needs 12V. The circuit described here ...