power supply circuit

The simple ring choking switch regulated power supply circuit

Published:2011/6/23 10:35:00 Author:qqtang | Keyword: choking, regulated power supply

The simple ring choking switch regulated power supply circuit is shown as above.   (View)

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The flash mode connection circuit

Published:2011/6/19 20:36:00 Author:qqtang | Keyword: flash mode, connection

The flash mode connection circuit is shown in the figure.   (View)

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The reversal switch power supply circuit

Published:2011/6/21 21:46:00 Author:qqtang | Keyword: reversal switch, power supply circuit

The typical circuit of the reversal switch power supply is shown in the figure. This kind of circuit is also called the step-up/down switch power supply. No matter whether the impulse DC voltage before TV1 is higher or lower than the output terminal stable voltage, the circuit can still work. When VT1 is conducting, the inductance L is storing energy, the diode VD1 is blocked, the load RL is powered by the electricity in the capacitor C. When the switch VT1 is blocked, the inductance L is still conducting and inducting a voltage whose upper part is passive and lower part is positive, and it provides with power for the load with the help of diode VD1.   (View)

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The step-up switch power supply circuit

Published:2011/6/23 3:35:00 Author:qqtang | Keyword: step-up, switch power supply

The step-up switch power supply circuit is shown in the figure. When VT1 is conducting, the inductor L is storing energy. When VT1 is blocked, L is inducting a voltage whose left side is passive and right side is positive, the voltage is added on the input voltage, and it provides with power with the help of VD1, which makes the output voltage higher than the input voltage and that forms a step-up switch power supply.   (View)

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The step-down switch power supply circuit

Published:2011/6/23 0:57:00 Author:qqtang | Keyword: step-down, switch power supply

The application circuit of the step-down switch power supply circuit is shown in the circuit. When the switch VT1 is conducting, the diode VD1 is blocked, the input rectified current is charging C with the help of VT1 and L, this circuit increases the energy storage of inductor L. When the switch pipe VT1 is blocked, L is inducting a voltage whose left side is passive and right side is positive, by releasing the energy in L with the help of RL and VD1, the DC voltage is maintained. Whether the voltage is high or low is decided by the pulse width on the basic electrode of VT1. This circuit needs a few components.   (View)

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The geared adjustable DC stabilizer power supply composed of LM317

Published:2011/6/15 2:02:00 Author:Borg | Keyword: DC stabilizer, power supply

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The 1.25～27V adjustable power supply(NE555 and LM723)

Published:2011/6/15 2:04:00 Author:Borg | Keyword: adjustable power supply

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The low-voltage,high-precision and large-current stable power supply of TWH9101

Published:2011/6/15 2:09:00 Author:Borg | Keyword: low-voltage, high-precision, large-current

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The efficient stable power supply (LM334)

Published:2011/6/15 1:42:00 Author:Borg | Keyword: stable power supply

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The adjustable, stable large current power supply

Published:2011/6/15 23:45:00 Author:Borg | Keyword: large current, power supply

The voltage of the stable power supply can be regulated from 3.5V to 25V, whose output current is large, and it is an adjustable voltage steady pipe circuit, so a stable enough output vo
tage can be got.Working principle: after being filtered and rectified, the DC voltage is offered to the basic pole of the adjusting pipe by R1, which makes the pipe conducting. When V1 is conducting, the voltage crosses RP and V2, which makes V2 conducting, and V3 is also conducting subsequently, at this moment, the voltages on the emitters and collecting electrodes of V1, V2 and V3 are no longer changing(the functions are the same with the voltage steady pipe). By adjusting RP, we can get a stable output voltage.   (View)

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The precise large current stable power supply composed of LM338

Published:2011/6/15 2:06:00 Author:Borg | Keyword: large current, power supply

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The multiple output stable power supply (7912 and 7805)

Published:2011/6/15 23:03:00 Author:Borg | Keyword: multiple output, stable power supply

In the figure is the multiple output stable power supply. The circuit provides with 4 teams of independent output voltages of +12v, +5v,-5v and -12v by using the 4 second transformer coils, 7812,7805,7905 and 7912. The voltage of each team has its own switch controller and output indicator. The circuit can be used for experiments.   (View)

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The constant current stable power supply in parallel connection composed of 5G14D

Published:2011/6/15 0:06:00 Author:Borg | Keyword: stable power supply, parallel connection

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The +24V and 1.9A stable power supply composed of 5G14D

Published:2011/6/15 0:03:00 Author:Borg | Keyword: power supply

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The parallel current expanding power supply of -18v and 2A composed of CW337

Published:2011/6/15 0:01:00 Author:Borg | Keyword: current expanding, power supply

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The large current output linear stabilizer circuit composed of many MOSFET pipes in parallel connection

Published:2011/6/14 21:41:00 Author:Borg | Keyword: large current, linear stabilizer, MOSFET

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The +5V voltage stable power supply composed of LM7805

Published:2011/6/14 21:34:00 Author:Borg | Keyword: stable power supply

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The outputting large current linear stabilizer circuit composed of MIC5158 (2007)

Published:2011/6/14 11:48:00 Author:Borg | Keyword: large current, linear stabilizer

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The large current output integrated stabilized power supply circuit composed of CW7800 (2)

Published:2011/6/14 11:29:00 Author:Borg | Keyword: large current output, power supply

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The large current output integrated stabilized power supply circuit composed of CW7800 (1)

Published:2011/6/14 11:30:00 Author:Borg | Keyword: large current output, power supply circuit

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