Power Supply Units | Electronic Project Circuits

Posts Tagged ‘power supply units’

Soft Start for power supply units

The circuit will limit the current through the supply wires to 5.5A for about 1.5sec. After that time the relay will close and the current flow won’t be restricted anymore. This is a very interesting circuit if you have a large toroid with big electrolytic caps connected to the power supply, since these will act like short circuits for a small amount of time if they start charging

Be the first to comment - What do you think? Posted by admin - October 28, 2008 at 7:03 am

Categories: Basic electronics, Electronic Control, Power supply Tags: power supply units, soft start

Amplifier power supply using High Current Transformer

Friends ever meet a problem power supply Circuit give current not enough. I has way this out give friends try apply. Follow this circuit High Current transformer parallel circuit make you have Current tall go up very. The transformer that have many the coil , we can bring to do high Current power supply circuit well. By if the all coil has Voltage be equal. It is can bring parallel can follow this circuit is coil lead that has Voltage 24V and have Current about 1A come to parallel prevent all 2 the group have current altogether each 2A groups by have voltage at 24V be the same. This circuit then can become Dual power supply at 34V positive and -34V Negative and Ground. This circuit uses to are amplifier power supply get good. Suppose will give the electric power about 50watt. For the diode use 3A 100V sizes and use. The Stancor for filter noise signal the all well. This circuit may help to give testimony have the idea in applying work other , get please sir.

Be the first to comment - What do you think? Posted by admin - September 23, 2008 at 8:37 am

Categories: High current power supply, Power Amplifier, Power supply Tags: Amplifier Power Supply, High current power supply, power supply units

Power supply regulator 38V

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 sizes please see in the circuit. I hopes this circuit may in rows think in applying work other , please sir.