This is the circuit diagram of DC voltage doubler / DC converter. The circuit will convert 12VDC power supply to become a 24VDC at and 18VDC. Almost any PNP or NPN power transistors should be work for this circuit. (more…)
Maximum input voltage for this circuit is 30 volts . Thus, the output, we get ±15 Volts. current load - 1A . (more…)
A simple scheme to generate the inverter voltage from 1.5V to 3V can be made on the basis of slightly modified the well-known multivibrator. Under these denominations in the scheme of the frequency converter is approximately 130 kHz. Inductance value can be calculated or chosen experimentally. But you can simply adjust the frequency of the converter to produce maximum output voltage. Schottky diode VD1 can be replaced by any other similar characteristics. (more…)
This is the DC voltage doubler circuit which build based National IC LM2586. The circuit will doubling the input voltage of 12VDC to become 24VDC. Heatsink is required for this circuit. The LM2586 is a monolithic integrated circuits specifically designed for flyback, step-up (boost), and forward converter applications. The device is available in 4 different output voltage versions: 3.3V, 5.0V, 12V, and adjustable. (more…)
Interesting DC / DC converter Linear Technology has presented the company, this chip is the boost converters that allow you to get the maximum voltage in 34B with the input voltage from 1.2V to 15V. It comes in a compact package of 5 pin SOT23, while for work requiring minimal external circuitry. These chips can be used, for example, a high voltage for the LCD screen or for the varicap. (more…)
12 V to 9 V DC-DC Converter This DC-DC Converter schematic diagram is very simple with few components, making it easy to build. It can convert 9 volt DC voltage from 12 VDC source. To obtain a much more accurate output voltage, change zener Z1 using 10V and resistor R1 with a 1 Kohm Variable resistor. A heatsink for Q1 is recommended. Very simple circuit to be able to power your 9 volt electronic equipment and some other stuff.
Stable power supply for high voltage power supply for the core of a high voltage of the PWM - Controller TL494, loaded with over 4050 followers on a pair of powerful field-effect transistors, switching the primary winding of step-up transformer (4 + 4 turns - the primary winding, 200 turns - the secondary winding). With the secondary winding through a rectifier with voltage doubling and smoothing filter RC LC voltage reaches the voltage divider, and the regulator output voltage.
Below is a schematic diagram of a DC to DC Converter 12 Volt to 21 Volt by using IC TDA2003. This 12 V to 21 V DC to DC Converter can perform nicely at 500mA maximum current. In case the current exceeds 500 milli-amperes, the voltage will drop below 21 Volt. (more…)