Showing posts with label dc power supply. Show all posts
Showing posts with label dc power supply. Show all posts

Tuesday, January 23, 2018

Circuit Schematic 60V Input 5V with 3A Output DC-DC Converter for Industrial and Automotive

Eltronicschool. - This is one circuit schematic for you who want to build DC to DC converter in this time. Now, you can use the circuit schematic of 60V Input 5V with 3A Output DC-DC Converter for Industrial and Automotive below.

In this time, eside we will show you circuit schematic, we also will give you the description of this circuit and the last we will give you the link to read more about this circuit schematic from original source.

Circuit Schematic

Image Courtesy of http://www.electronics-lab.com/

Component Part


Description

Circuit schematic like in Figure 1 above is 60V Input 5V with 3A Output DC-DC Converter for Industrial and Automotive. Electronics-hub site describe that this is a 60 V 3A step down DC-DC converter. Sample applications are: 12 V, 24 V and 48 V Industrial, Automotive and Communications Power Systems. The TPS54360 is a 60 V, 3 A, step down regulator with an integrated high side MOSFET. The device survives load dump pulses up to 65V per ISO 7637. Current mode control provides simple external compensation and flexible component selection. A low ripple pulse skip mode reduces the no load supply current to 146 μA. Shutdown supply current is reduced to 2 μA when the enable pin is pulled low. Under voltage lockout is internally set at 4.3 V but can be increased using the enable pin. The output voltage start up ramp is internally controlled to provide a controlled start up and eliminate overshoot. A wide switching frequency range allows either efficiency or external component size to be optimized. Frequency fold back and thermal shutdown protects internal and external components during an overload condition.

And now you can read more about the 60V Input 5V with 3A Output DC-DC Converter for Industrial and Automotive circuit schematic from original source using link HERE.

Wednesday, January 11, 2017

Circuit Schematic Mobile Phone Battery Emulator using LM317 IC

Eltronicschool. - This is one electronic circuit schematic for you using voltage regulator IC LM317. This circuit title with Mobile Phone Battery Emulator using LM317 IC look like in Figure 1 below.

In this tim, beside we will give you global description about electronic circuit schematic of Mobile Phone Battery Emulator using LM317 IC, and we also will give you circuit schematic and component part.

Circuit Schematic

Component Part
  1. LM317
  2. Resistors
  3. Capacitors
  4. LED
  5. Variable resistor
Description

Circuit schematic like in Figure 1 above is Mobile Phone Battery Emulator using LM317 IC. With this circuit schematic, now you can build a battery emulator that would enable him to test and run a Li-ion battery-powered mobile phone without using its battery pack.

How it works

According Electroschematics site describe that the typical target voltage of the Li-ion battery is 4.2 V (note that the target voltage is not the same as the nominal voltage, as it is 3.7 V typical). An adjustable voltage regulator is designed as the mobile phone battery emulator. The circuit based on the popular three-pin adjustable voltage regulator LM317T (IC1) receives external dc input of 9 V/2 A through input connector J1. The output voltage available at connector J2 can be adjusted from just below 3 V to just above 4 V with the help of the 500-Ω multi-turn preset pot (RP1). Although most devices powered by Nokia batteries appear to work well at about 4.2 V, a little bit of experimentation with the values of resistors R2-R3-RP1 may be necessary. As stated earlier, the 82-kΩ resistor (R4) is essential to fooling the device into thinking that a real battery is attached at its battery connector.

Friday, May 8, 2015

Circuit Schematic Regulated DC Power Supply using Transistors

Eltronicschool. - Do you need circuit schematic for regulated DC power supply based on transistors? We think circuit schematic like in figure 1 below can be used as you reference to build Circuit Schematic Regulated DC Power Supply using Transistors.

This circuit is a low ripple regulated DC power supply that designed base on transistor. Transistor voltage regulators are suitable for this application where high output current is required in this condition. Conventional integrated series regulators can be used like LM7805 can only deliver up to 1A. Additional series pass transistors have to be added to the 7805 based regulator circuit for improving their current capacity. 

In this article beside we will show you circuit schematic of Regulated DC Power Supply using Transistors, in here we also describe this circuit and give you special software to create or drawing this circuit in the last.

Circuit Schematic

Figure 1. Regulated DC Power Supply / Circuitstoday

Component List
  1. D1 = 5A Bridge diode
  2. C1 = 1000uF/ 50V
  3. R1 = 2K2
  4. C2 = 100uF/50V
  5. D2 = Zener Diodes 500mA
  6. Q1 = 2N3054
  7. Q2 = 2N3055
  8. R2 = 56 ohm
  9. C3 = 470uF/50V
  10. R3 = 10K
Description

Circuit schematic like in figure 1 above is Circuit Schematic Regulated DC Power Supply using Transistors. From this circuit schematic using two transistors Q1 2N3054 and Q2 2N3055. According Circuitstoday describe this circuit that the circuit shown below is a basic series voltage regulator based on transistors. Transistor Q1 (2N 3054) and Q2 (2N 3055) form a darlington pair. Resistor R1 provides the base current for Q1 and also keeps the zener diode D2 in the active region. The overall working of the circuit can be demonstrated by explaining two situations.
  1. When the input voltage (output of the rectifier section) increases, the output voltage of the regulator (Vout) also increases. This increase in Vout decreases the base emitter voltage of Q2 because the zener diode D2 is operating in the breakdown region and the voltage across it is unchangeable. This decrease in VBE increases the collector emitter resistance  of Q2 and so the output voltage (Vout) gets reduced accordingly.
  2. When the output load increases, the output voltage (Vout) gets reduced. This decrease of output voltage (Vout) makes VBE of Q2 to decrease. This reduces the collector emitter resistance of Q2 and so the output voltage gets increased accordingly. 
Download
  • Proteus Version 8.0 for Windows [Link]