Tag: power supply circuit

Power supply circuits, power supply projects Constant-regulated switching of various voltages and powers, linear integrated-transistor power supply applications

Adjustable voltage and current power supply LM337 LM317

| 2008/09/07

LM317 (positive voltage regulator) and LM337 (negative voltage regulator) output series-connected power transistors powered by the 5k and 20k potentiometer binary (stereo) type if you use the + and – output of the current and voltage settings set equal can Show some circuits and found that the output resistance of between 200 ~ 240 I…

Simple Symmetric Power Supply Circuit with LM317T LM337T

| 2008/09/04

The power supply circuit has a simple design, but it is a useful circuit that you can use in various circuit tests using 2 LM317T Positive regulators and 2 LM337T Negative voltage regulators. The output voltage can be adjusted gradually with the commutator. In fact, the voltage range can be adjusted more precisely with the…

LM317T Adjustable Regulated Power Supply

| 2008/09/01

The circuit has 1 ampere power adjustable between 1.3…22 volts, normally lm317t 1.2..32 volt adjustable can be used for some reason. If r2 is canceled and 5k is used instead of 2k trimpot, a simple 32 volt adjustable power supply circuit can be used to operate low current circuits. Do not use without a cooler.…

0-2A 0-30V Regulated Power Supply Circuit

| 2008/07/27

0-30 volt regulated power supply main parts of the TL081 opamp and transistors (BD243, BD139, BC548) In addition to the display indicator volt meter circuit ICL7107 made ​​with voltmeter power solid apart from the used power supply and voltmeter circuits Eagle prepared with PCBs schema files there. Laboratory-type power supply will do the trick in…

0-30V 0-20A Adjustable Switch Mode Power Supply SG3525 SMPS

| 2008/07/22

SMPS for people dealing with issues, especially in high power and adjustable voltage current transformer in the power stages of a circuit that can be imitated EF16-V1, ETD49, EI48 used core also V-A Display circuit voltage circuit icl7107 based on current indicators SwitchMode Power Supply Circuit 0-30 V 0-20 A A primary switched-mode power supply…

20 Amps 24 Volt Adjustable Regulated Power Supply Circuit L200

| 2008/06/14

The circuit is based on the adjustable voltage current regulator IC. With 6 2n3005, the output power of the IC can be adjusted with the increased output voltage. 13.8 volts is determined for 20 amps. The circuit has current protection, it switches to protection when there is overcurrent or short circuit. Since it is high…

Adjustable Power Supply Circuits Archive

| 2008/01/13

In our workshop, to run various circuits, or battery, battery charger that you can use in projects 0.x 0:30 volt power supply circuit that contains a variety of amps I’ve prepared a package. In addition to the professional power supply circuit includes a simple low-power designs. Circuit in the voltage range of 0.30 volts forces…

0-30 Volt 5 Amp Power Supply Circuits 2N3055 UA723

| 2008/01/12

Power supply circuit Texas Instruments voltage regulator integrated with an old ua723 ua723 based on the output current 150 may be stand-alone transistor powered by the circuit amperage 5 0 …. 30V output voltage may be adjusted. I say old, but still a highly integrated power supply is used in the new production line is…

7812 and 2N3055 12v-15 Volt 20 Amp Power Supply

| 2008/01/11

Heavy bulky quite strong and a shake 🙂 a power supply circuit is adjustable from 12 … 15 volt regulator integrated 12volt classic L7812 was carried out by increasing the flow of Integrated control of the L7812 (12v positive regulator) integrated output power of 1 Ampere output used to strengthen the BD708 MJ2955 Transformer Troidal…

Simple 5V Regulator Circuit

| 2008/01/04

Fixed 5V regulator circuit that can provide a simple. One transistor MJE3055. = The Zener voltage of the output voltage – threshold voltage transistor is according to formula. 5 V Regulator Schematic