Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [bipolar-power-supply]

21 questions
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36VDC to +/-15V linear regulator setup - will this design work?

I designed a +/-15V power supply setup and trying to find/fix problems before running another PCB production run. It will accept 36VDC (800mA) from an off the shelf part via a barrel connector. I cannot change that part of the equation so I'm trying…
Khanorr
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Using Arduino to gate +5 and -5 supplies, simultaneously

I have some valves (Walfront36atn8w5ph) I need to control. They use pulses of +5V and -5V, with up to 1A current (specified, not personally measured), to change state (no holding current/voltage, it's just about initiating a state change). Some…
EE_Questions
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Limits to number of parallel smoothing capacitors in a power supply

Would there be any disadvantage (other than a high component count) to using seven 470 μF, 16 V electrolytic capacitors instead of one 3300 μF, 16 V capacitor to smooth power supply ripple?
JCHaywire
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Making a unipolar HVPS bipolar safely

I have a Keithley 5kV power supply (2290 model) that I use for high energy physics experiment. It has resolution of 1V and current resolution of 1uA. The range that it offers is +0V to +5000V via its SHV connectors i.e. unipolar. I wanted to know if…
abunickabhi
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Standard approach for a split power supply ADC?

I'm currently working on a project that will incorporate an AD7124-8 ADC, which as far as I understand can accept true bipolar inputs when provided a split supply. I tried to dig around for an app note or reference design from AD on this, but…
Sensors
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How do I calculate the maximum load on a center-tapped AC/AC transformer for a bi-polar linear power supply with full wave rectification?

I have a 24 VCT AC to AC step-down transformer, which has three wire leads on the secondary. I'll call the secondary leads X, Y, and C, where C is the center tap. With a DMM, the voltage between X and Y is about 24 VAC (actually slightly higher),…
Nick
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Troubleshoot a bipolar amplifier circuit

I am working on a project in which I am attempting to interface with an ILDA galvanometer from an arduino to move around a projected laser beam. I am following a guide linked here, particularly step 7 at the introduction of the amplifier…
M Seaman
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LM2576-ADJ bipolar power supply troubleshooting

I'm hoping to find some help here troubleshooting. The circuit in question is a bipolar power supply that makes use of two LM2576-ADJ. The desired output voltage is +12v and -12v. I've breadboarded this circuit before ordering the PCB, and it seemed…
otivlasc
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Low Voltage, High Frequency, High Amperage Power Supply Design

For an ongoing project of studying magnetic properties of various metals we need to use a power supply which can generate 25 V peak to peak, frequency 50- 500 kHz, 5A (PP) current. Frequency would be sine/cosine (Hanning) with tone bursts of 1 to…
Rahul
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Using 2 postive regulators with 2 prong power supplies for bipolor power supply

My nephew and I have been working on a circuit that uses +/- 4.5V. Up until now we have been using 2 3-AAA battery holders to supply each leg and now wish to move to mains power. My question is, discounting the more unusual topographies(auto…
GB - AE7OO
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How can I make a bipolar isolated DC-DC power supply for gate drivers?

I want to design a gate driver board to drive 6 SiC MOSFETs/PWR IGBT where the VBus can go up to 1200V. I need to use an isolated DC-DC power supply that can make dual bipolar rails (+15V/-8V) from a 15V input, something like the below image. My…
Younes Thabet
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Grounding a bi polar high voltage pulser

This was a "brain teaser" in a circuits class, where only theory is required. Any equations or vocabulary to look into would be greatly appreciated. The question is the following: You are designing a high voltage pulser for use in electrochemistry.…
Jinxston Holshue
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Boost converter with regulator

I have set up a boost converter with a regulator in LTspice, but I get a lower voltage at the output than at the input. What could be the reason?
Sarah
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Bridger rectifier producing non-equal voltages

I am making a bi-polar 12V power supply with a centre tapped (12-0-12) AC transformer. On inspecting the voltages after the bridge rectifier (KBU-4B), the negative side produces -26V and the positive produces +10V. Both sides have a 470uF cap before…
Ed Lewis
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General Guidelines for Bipolar ADC Power Supply

I’m building an AC Power Meter using the ADS131E08 from Texas Instruments and am trying to find the best way to generate a 400mA +/-2.5V supply from a +5V source. The 5V source is the isolated DC-DC converter from Murata (NXJ1S0505MC). My only…
cdubs
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