Power Supply 6V-9V for a calculater
Power supply
The circuit that see this is power supply 6V to 9V (Input 12V) of a calculator. That have preventing something through the circuit in. The part that perform to heal strong a picture uses the integrated circuit op-amp multi-purpose 741 numbers in the character comparator mode. The circuit protects output compose transistor TR1-TR3. By transistor TR1 perform acknowledge voltage straddle Resistor R3. Which work when have current about 250mA or more than flow through R3 when TR1 work pick load C3 as a result will do way resister package R5 10K values and thereafter 2 railings second. The voltage its …
Power supply regulator 38V
Power supply
A friend of me one person study about CNC , but stick the problem about power supply of 38V servo motor. Then beg me help to seek power supply regulator 38V Circuit , please. If there is many the circuit or get choose that best. This circuit is one in the choice. It uses Transistor be main part. Follow the circuit Q1 use the number BD139 or the other. For Q2 use 2N3055 highly popular numbers . And Zener Diode use 37V-40V power rate about 1A. The Transformer use 2A sizes. The BD1 use 4A – 6A 200V. Detail other …
power supply regulator mini 9V 0.75A by Transistor
Power supply
power supply regulator mini 9V 0.75A by Transistor BD242 and BC549C. VR1-1K control Volt output.VR2-1K control current output. If you have old equipment from tape radio will to do good. I advises that try bring build , mini power supply 9Volt all right. By I uses the transistor number BD242 , the diode the ordinary and part the other a little again. It can help modify voltage 12VDC from be 9VDC 0.75A . For VR1 and VR2 use for fine decorate voltage and current can follow want. You can see the detail can add in the circuit. Related Links More …
Unregulator Power Supply
Power supply
circuit Unregulator Power Supply This be Unregulated power supply circuit. The size about 8V 100mA follow circuit picture has.The detail about the value RIPPLE or Vrip with good interesting. Related Links More Circuit about simple power supply More about unregulator circuit More about dc voltage regulator Simple Regulator By Transistor (C1061) Simple 5V 1A Switching regulator by IC LM2575-5.0 A Simple Voltage Regulator +22V -22V by TIP3055,TIP2955 Simple power supply variable Voltage 0-15V, max output 1A. Easy power supply 0-15V , 0-1A Small Variable Power Supply by LM723