1. drjackool

    AC to DC circuit

    Hi I want design a simple AC to DC base on following circuit but I don not know how obtain elements value for capacitors and inductor What is correct value for them? Consider AC voltage is 15V and 5Amps Thanks in advance Also I want connect the out put of this circuit to following circuit, I...
  2. maitrey

    Regulated DC Power Supply (w/ calibration)

    Hello, I'm looking for a regulated DC power supply (110 VAC to 24-30V DC) to calibrate another piece of machine. This machine will be sourced variable DC voltage and it will then give desired output which will be recorded to measure machine's overall. Ideally looking for something which can...
  3. Vish Ram

    Power supply for Single Peltier Module

    Hi Experts, I've got 12V, 20A, 240W SMPS (AC to DC) Power supply, & I've attached single(1) Peltier Module (TEC- 12706) - 12V, 6A(Max) with that SMPS But when I gave power to Peltier Module without Heat Sink via SMPS (Power Supply), it works for few seconds & then it stopped (Heating &...
  4. Vish Ram

    SMPS Current Regulation

    Hi Experts, I've SMPS (AC to DC) which gives output of 12V, 20A, 240W, & I've to attach Peltier device (TEC1 12706) with SMPS, but Confusion is Peltier have max. Current rating as 6A, but SMPS is giving 20A, So how to limit o/p of SMPS to 6A, so it wont damage Peltier, how current regulation...
  5. M

    Convert 120v AC to -5v DC

    I have a device that runs on -5v DC but I only have 120V AC. I need to build a power supply that can convert 120v AC to -5v DC. I need to draw the best power supple and indicate the wave form at each stage.
  6. H

    why voltage starts fluctuating when reduce ?

    i have a power supply of 24 volts and the circuit consist 103aiw dual op amp till 14 volts the power supply output stays stable but further more it's starts fluctuating but when load connected the voltage become stable please help me to find out the reason why without load the op amp don't work...
  7. R

    Fan Regulator Feedback Generator

    Hello Everyone, I need help in to generate feedback for fan regulator to the controller. 1. AC Fan require 1 phase Ac supply (230VAC/50Hz) 2. Controller require DC voltage in range of 0 to 3V3 3. System is able to support all type regulator, there different type's...
  8. jmh474

    Welder conversion

    So I been given a 130 amp flux core welder and I plan on converting it to real mig/mag but the out put is AC and ready it need to be dc iv ordered a 150 amp single phase rectifier and planned on adding some capacitors to help smooth out the dc. There a a few other modifications I'm planning on...
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