Questions tagged [bipolar-power-supply]

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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 ...
121 views

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 ...
• 35
55 views

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?
1 vote
26 views

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 ...
• 349
1 vote
67 views

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 ...
• 1,265
1 vote
324 views

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 ...
• 113
92 views

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 ...
51 views

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 ...
• 107
54 views

Designing of a voltage to current converter schematic

Voltage is from a sensor (0 to 4 V), and load is within -100 nA and +100nA, where 0V should be converted to -100nA and 4V to +100nA. Here is my last trial (picture below.) I got the -100nA for 0V and +...
1 vote
75 views

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 ...
• 11
128 views

How to create bipolar power supplying from Powerbank 5V 3A

I have 2 ADS1299 analog to digital converters(https://datasheet.octopart.com/ADS1299IPAG-Texas-Instruments-datasheet-17020782.pdf). I need to give them bipolar mode supplying but I must use a ...
405 views

How to convert +5V power source to +/-5V power source

To supply op-amp 1, I need a power supply voltage of +2.5V and -2.5V. To supply op-amp 2, I need a power supply voltage of +4V and -1V. The outgoing signal from the op-amp stage will be fed into an ...
• 365
1 vote
803 views

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 ...
• 15
249 views

Is there such thing as a Bipolar Wall-wart?

Looking for a UL approved device that gives +9V and -9V from the 120VAC wall. I need the +/-9V to power a circuit and I don't want to make an extra PCB. My alternative is to have two 9V wall warts but ...
• 479
1 vote
234 views

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 ...
• 21
75 views

Decreasing output of a voltage doubler

I'm trying to build the following circuit. The advice on the site I got it from said to try using 1n4001's instead of 1n5817's, because that would get the voltage down to around 15V, which is what I ...