Questions tagged [dual-supply]
The dual-supply tag has no usage guidance.
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How is it possible to supply an LM833D with +12V and -8V supply?
I was studying a Philips CDR-765 circuit when I came across an output driver circuit consisting of an LM833 opamp supplied with -8VDC on the 4th pin and +12VDC on the 8th pin.
This is the first time I ...
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Single supply positive-only signal amplification using INA126 (two op-amp in-amp)
I need to amplify a 0.15-0.8 V very low frequency signal to the 0-10 V range of an ADC. I'm having a hard time figuring out why an INA126 does work as expected with dual supply but seems not to work ...
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Switching between batteries and a power supply
I have a powerful system (can use up to 20A in max load when using batteries) that can be either powered by batteries, or when possible, by another power supply with the same voltage, so it stops ...
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Grounding issues when using multiple supplies
I have a few questions about how grounding on a PCB and to an enclosure should be done when using multiple supplies. I have read a number of similar questions/answers from multiple sources with the ...
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Dual voltage power supply
I am working on my first power supply design for +12 V and -12 V output. The +12 V is working perfectly. The negative output at the rectifier is only -1.87 V.
I have checked the wiring, replaced some ...
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How to Wire Potentiometer Wiper
It appears as though the wipers are unwired in this schematic. Are only the far left and far right pins wired in this circuit?
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How to increase the output current of a dual supply (virtual ground) circuit
I need to build a dual 5 volts power supply capable of 200mA output current.
I've seen designs using TLE2426 and BUF634, but they cost too much for my project.
Is it possible to use a simple OpAmp ...
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Best way to get stable +-9 volts AND 5 volt from a 9V DC source
I'm quite new in electronics, but I'm not scared to try it (Look Mum No Computer). So please bear with me and tell how to improve my asking.
I am building a guitar pedal. It's a op-amp based parallel ...
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Seamless power source switching for a microcontroller (ATtiny85) [duplicate]
I'm seeking guidance on accomplishing seamless power source switching for a microcontroller (ATtiny85). My objective is to seamlessly transition power input between two distinct sources (Raspberry and ...
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Output signal distortion from op-amp
I am currently using a TLE2144, and the input signal of 600 kHz, 4.5 Vpp is generated from a function generator.
Using a voltage follower with TLE2144, I was able to get an output of 4.5 Vpp with an ...
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12v LED lights powered by 2 different circuits
I am wiring some automotive LED lights (underglow), and currently have them wired from the 12v ACC power (on when ignition is on), with a 5-pin illuminated on/off rocker switch on the dash. It works ...
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Op-amp dual supply methods
To power an op-amp with a dual supply (+Vcc and -Vcc) you can use two power supplies connected in series.
I would like to find an alternative and less expensive way to do this as (in my project) the ...
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2
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Converting AGC Schematic from Single Sided to Dual Sided Supply
I am working with the attached circuit, sourced from here: Original
This circuit is designed for a single sided power supply and has worked very well for me in the past. For a new project, I would ...
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Dual batteries changeover circuit to avoid power loss
I have a similar question to the one here How to create automatic dual battery changeover/switching circuit for uninterruptible power?, but would prefer to use a mechanical switch (eg a rocker switch)....
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Circuit with dual batteries used in sequence
I have a circuit that is currently powered by two 18650s connected in parallel via a TP4056 USB charging and protection module. The circuit uses very low power and therefore it lasts for weeks if not ...
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