Questions tagged [linear-regulator]
A linear voltage or current regulator provides a continuous non-pulsed supply of current or voltage. It may be fixed or adjustable, and can be put under control by a CPU/MPU. In spite of sometimes low efficiency they are popular because they provide clean noise-free DC current or voltage, as opposed to switching supplies that can be very efficient with power regulation but induce much RF noise into the outputs which need extra parts to filter out.
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How important is it for a linear voltage regulator to be located close to the load? [closed]
As stated in the title, I am considering placing a linear voltage regulator some distance from its load.
I am assuming that is OK to run a sense (SNS) line in parallel to the voltage line, except it ...
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What is the purpose of R2 in this op-amp–based voltage regulator circuit?
I am playing around with familiarizing myself more with op amps and circuits in general. I came across a circuit on a website and I am a bit confused by the placement of one of the components and I am ...
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Will this “power or-ing” circuit allow my linear voltage regulator to be powered without a connected battery?
So I have this battery charging circuit. It’s the BQ24092 (battery charging IC) connected to the TPS793 (linear voltage regulator). When a LiPo of 3.7V is connected and a USB-C of 5V is connected, the ...
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Linear voltage regulator, Why does this design not make sense according to the values given?
This is the circuit for a linear voltage regulator. It is stated that the values given don't correspond to the circuit, which I cannot seem to figure out as to why. I suspect it has something to do ...
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+24V to +-15V and +-12V Using Switching and Linear Regulator
I'm designing a power control unit for a project where I need to take a 24V input and step it down to low noise +-15V and +-12V. The plan I've decided to go with uses the LTC3649 and LTC7149 switching ...
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Selection of heatsink and/or decreasing power
A few months back I asked a question about how to implement a voltage regulator to reduce the given rectified 33V supply voltage to about 24V. I decided to use the LM78S24 paired with a BD536 (both ...
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Ferrite Bead - Uses with Linear Voltage Regulators on PCBA
The specific technical question I am after is... (as I am trying to ask the right one) What are the consequences good and/or bad for using a ferrite bead before a digital power input on an MCU, where ...
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How can the transfer function of a TL431-based regulator be calculated?
I would like to design a simple stabilized power supply using a TLA431. I’m curious how the transfer function of the circuit can be determined. I made a draft, but I haven’t taken the transistor’s ...
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Please explain how this regulator circuit (from a research paper) works
I've found the circuit below in this publication:
Chen, Jiann-Jong, et al. "Low-quiescent-current fast-response current-feedback shunt regulator." APCCAS 2008-2008 IEEE Asia Pacific ...
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When powering two 24VDC (48W) lights from a 24VAC source, should I use a voltage regulator, DCDC converter or just diodes in series?
I am currently trying to design a little DIY project for my snow thrower by installing some LED lights so that I can use a little later or earlier if needed.
The thing supplies 24VAC so I bought two ...
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Current limit of linear power regulator based on LM350
I recently built a linear PSU using the LM350 regulator. However, I’ve noticed the current limit isn’t linear. When I adjust the R5 potentiometer, the circuit seems to jump between two limiting points—...
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Load regulation of a linear regulator: understanding datasheet value
Load regulation describes how good linear regulators are able to keep their output voltage when load impedance changes.
Some datasheets (e.g. NCP114) simply state this value in Volts:
See: https://...
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Capacitors on Input Side of Two Regulators
As per schematic below, two LDO regulators (one 3.3V out, one 5V out) both constructed as per their datasheet and both connected to the same VIN.
Can/should C1 and C3 in the schematic below be ...
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Single pass element linear regulator with adjustable voltage and current
I'm asking for help because after searching for weeks I haven't found a solution for this exact problem.
I'm building a lab PSU with rating of 0-30V and 4A. I got a SMPS as a pre-regulator and I'm ...
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Load sharing resistor for linear power supplies?
I have two simple linear power supplies (torodial transformer, rectifier, capacitor, linear regulator LM338T based hence 5 A, capacitor) that I would like to gang together for a load (max. 8 A).
I am ...
