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One voltage regulator works for multiple gauges, able to provide 12 volts to the whole dashboard and replacing the need for individual dropping resistors on a 24 volt system. In 30A output, if you cannot buy a 68,000uF 25V electrolytic capacitor. You may use 10,000uF 25V x 6 connect together in parallel. It saves money and easy. Note: Q1-Q7 is 2N3055 NPN power transistor. Also, you may use TIP35 High-Power Transistors in TO-247. But it is more expensive than a 2N3055. Better protection
And the transmitter is normally used in the car with 12V battery is designed to be compatible with existing 13-14V voltage. How it buildsImagine, you have a lot of power transistors, 2N3055. Because it is popular in the transistor power amplifier.
The output voltage of the high current 13.8V power circuit is equal to the voltage output of IC1 (15V) minus the voltage drop across the base (B)- emitter (E) of transistor driver (Q1) and the transistor through (Q2) and the voltage drop across R5 emitter of Q2. If your sender has a high or low level alarm we will need to know if the switch is normally off (when the tank is empty), turning on when the tank is full or normally on, turning off when the tank is full. We will also need to know how far from the top or bottom of the sender you would like the alarm switch to be. Tank Contents?For example, the transformer if you want 30A output current. So you need the least of 30A transformer. It is so big. IC1 is temporarily stopped responding. Because it is overloaded. By earlier, the current of 1A flow through the IC1 and the SCR1 into loaded directly. Not through all transistors. Of course, you can buy a power supply that simple and effective with a variety of sizes. But if you build them with your own or your friends. It will be a great time while creating this project. And when completed, runs in its function. It will very proud.
One voltage regulator will replace all of the dropping resistors normally wired in-line on a 24 volt dashboard. What to watch out, when we connect many IC with parallel form, is the average current flowing through the circuit. Each equally.
List of circuit components
Besides, this power supply circuit is also useful as a wide variety. Such as A large DC motor, car audio system, and others. Which you may apply by changing the voltage and current as needed. This circuit is very flexible. All the electronics are sealed providing IP68 (submersible up to 1.5m deep for at least 30 mins) protection from the elements. Useful on both 12 and 24 volt systems — on 24 volt systems it reduces the voltage down to 12/13.8 volts, and on 12 volt systems it ensures a constant current. To measure an S5 sender (with bolt down head) measure from the underside of the flange to the bottom of the stem
Because the components used in this 13.8V power supply circuit there is not much. And most of them are large. Which must be installed on a heat sink. Figure 1 circuit, in normal conditions, the voltage between pin Adj and pin output is equal to a 1.25V stable that flow pass R1, R2 will have constant as well. So, making the voltage output of this circuit is slightly changed the switch from 14V (under no load) It may be of 13V in fully loaded conditions (regulation). When IC1 has been heating up over defined transistor. It stops! Of course, there is no current to the transistor. So, It gradually reduces heat down. IC1 will return to run again. The operation of this project, so no need to use a PCB. May use point connect the power cord, tighten the nut onto the heat sink. Then, Connect the wires to the other parts onto the heat sink. Choose parts as you wantBut it may do not for sale. We may use five of 4,700uF 25V capacitors to connect together in parallel. So, we have a total capacity of 4,700 μF x 5 is 23,500μF.It is enough to use. It may have more energy a loss in transistors and ICs. Making must use a larger heat sink. It is too consumes more energy than necessary.
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