voltage doubler | Electronic Schematic Diagram https://electronicscheme.net Schematic Diagram & PCB Design Sat, 18 Mar 2017 23:12:53 +0000 en-US hourly 1 https://i0.wp.com/electronicscheme.net/wp-content/uploads/2017/05/cropped-transparent_text_effect.png?fit=32%2C32&ssl=1 voltage doubler | Electronic Schematic Diagram https://electronicscheme.net 32 32 129969089 Active DC Voltage Doubler https://electronicscheme.net/active-voltage-doubler/?utm_source=rss&utm_medium=rss&utm_campaign=active-voltage-doubler https://electronicscheme.net/active-voltage-doubler/#respond Sun, 16 Aug 2009 03:50:34 +0000 http://electronicscheme.net/?p=178 Here is the circuit diagram of active DC voltage doubler which used to increase the DC voltage. This circuit drives relays of 24 and 18VDC […]

The post Active DC Voltage Doubler first appeared on Electronic Schematic Diagram.]]> Here is the circuit diagram of active DC voltage doubler which used to increase the DC voltage.

Active Voltage Doubler circuit diagram

This circuit drives relays of 24 and 18VDC from a 12V power supply. Use this circuit can be work with almost any PNP or NPN power transistor, of course the transistor with specific characteristic similar to the transistor type described in components list.

The timer IC NE555 used to be a multivibrator to generate signal frequency 1KHz and feed to the power transistors for amplification.

Active DC Voltage Doubler Components List:

U1_______: NE555 timer
C1,C2____: 50uF/25V
Q1_______: TIP29, TIP120, TIP61, TIP110, 2N4922, 2N4921
Q2_______: TIP30, TIP125, TIP62, TIP115, TIP125, 2N4918
The post Active DC Voltage Doubler first appeared on Electronic Schematic Diagram.]]> https://electronicscheme.net/active-voltage-doubler/feed/ 0 178 6V to 12V DC to DC Voltage Converter https://electronicscheme.net/6v-to-12v-dc-voltage-converter/?utm_source=rss&utm_medium=rss&utm_campaign=6v-to-12v-dc-voltage-converter https://electronicscheme.net/6v-to-12v-dc-voltage-converter/#comments Fri, 17 Apr 2009 17:18:03 +0000 http://electronicscheme.net/?p=75 This is the circuit diagram of 6V to 12V DC to DC voltage converter (6V to 12V DC voltage doubler). This is the active circuit […]

The post 6V to 12V DC to DC Voltage Converter first appeared on Electronic Schematic Diagram.]]> This is the circuit diagram of 6V to 12V DC to DC voltage converter (6V to 12V DC voltage doubler). This is the active circuit for voltage doubling from 6 volt to 12 volt DC with 1A maximum current. The IC is used as switcher device.

Schematic diagram:

6V to 12V DC to DC Converter schematic diagram

Components and its usage:

IC Switcher/regulator LM2577T-ADJ (Texas Instrument)
R1 and R2 Voltage devider for monitoring output voltage 20Kohms pot. (Bourns)
Cin Decoupling 0.1?F, 63V MKS condensator (WIMA)
L Use a good quality coil! 160?H toro?d (2.5A, 70mohms, nickel-iron core)
D Current higher than output current! FR603 60V reverse breakdown, 3A Schottky-diode
Rc and Cc Pole-zero compensation network 2200ohms, 5% and 1?F, 63V elco (Philips)
Cout Get a low ESR type! 2200?F, 16V elco (Telecon)


6V to 12V DC to DC voltage converter circuit works:

When the switch is closed an extra current flows through the inductance and stores energy there. The capacitor supplies the load with current during this time.

After the switch closes the capacitor is charged by the energy stored in the inductance and an extra current starts flowing through the load, causing the output voltage to rise (energy is supplied directly from the input source also as long as the diode is forward biased). During this time, the system behaves like a RLC-circuit, so, after a while, the current decreases. The switch is then closed again and the cycle repeats. One could say that charge is pumped from input to output, increasing the output voltage up to the point where there is an equilibrium between the discharging of the capacitor while the switch is closed and the charging by the inductor while the switch is open.

PCB layout:

This is the simple and easy built of PCB design layout for above 6V to 12V DC Voltage converter diagram.

6V to 12V DC Voltage Converter pcb layout

The circuit will look like following image:

6V to 12V DC Voltage Converter component layout

The post 6V to 12V DC to DC Voltage Converter first appeared on Electronic Schematic Diagram.]]> https://electronicscheme.net/6v-to-12v-dc-voltage-converter/feed/ 14 75