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Linear power supply and battery for shortwave

S-Pixie DIY Kits Super CW QRP 7.023 MHz with Shell Large

Radio Station Power Supply Voltage is 9-13.8V (Battery or Linear Regulated Power Supply is

Power Supply 101 (Linear Supply)

This post (originally from ~2014) introduces the basic operation of a linear power supply, showing voltage and currents at the input and output. There has been a lot of debate about power cords and their impact on the

Your First Power Supply – Linear or Switching?

Are you trying to choose between a linear and switching power supply for a

What portable shortwave radios come with AC power supply?

The included AC adapter for the Tecsun PL-680 https:// is a switch-mode type (switching) power supply as used

13.8V 80A Linear PS circuit design analysis for Ham Radio Use

My objective is to design and build a very high quality, very safe, very stable 13.8v Linear DC Power Supply that can sustain up to 80 Amps at a 50% to 75% duty cycle,

Power Supply Discussion: Linear, SMPS, Battery. Allo Shanti LPS

ALLO SHANTI LINEAR POWER SUPPLY. 0827201234 by drjlo2, on Flickr. Actually, when compared to certain other types of wire and especially my battery power

Battery power vs Linear Power Supply | by Larry Ho | Medium

Battery vs SMPS (switched-mode power supply) Battery''s noise generated is usually very high frequency noise up into the Mega Hz or Giga Hz ranges. This is not only

SDRplay RSPdx and laptop power supply noise interference in shortwave

2. A Lenovo Thinkpad X1 Gen 3 tablet (very similar design to the Microsoft Surface Pros). It receives power through either of its two USB-C Thunderbolt ports. I''ve tried

Amateur Radio Power Supplies

If you choose a linear power supply box, you benefit from higher transient response times. Linear power supplies are also less likely to cause EMI and RFI. If you decide linear suits your radio

Power Supply 101 (Linear Supply)

This post (originally from ~2014) introduces the basic operation of a linear power supply, showing voltage and currents at the input and output. There has been a lot of debate

Xiegu X6100

X6100 is an ultra-portable shortwave transceiver. It adopts the SDR software radio platform architecture of excellent performance, which carries powerful baseband and RF unit,

13.8V 80A Linear PS circuit design analysis for Ham

My recommendations for using a WiiM Pro

This LHY Audio BATT-USB regulated linear power supply module uses four 21700 batteries with a capacity of 4900mAh (a total of 9.8Ah) and an ultra-low-noise LDO

Power supply for shortwave portables

It''s worth keeping in mind that either the diodes or the linear regulator will waste a significant amount of battery power as heat. Their main advantages are that they are simple to

Low cost high quality excellent performing LPSU for

A linear regulated power supply regulates the output voltage by dropping excess voltage in a series dissipative component. They use a moderately complex regulator circuit to achieve very low load and line

MegaWatt Ham Radio Power Supply

We at MegaWatt Sell High Quality Power Supplies for Ham Radio, CB Radio, Linear Amplifiers, Shortwave Radio, HF and Audio Amplifies. Great RV and Car Battery Chargers too. They also work with RC Battery Chargers, Car Stereos

TRA Q-3061 DRM AM/FM MW/Shortwave Radio

The TRA Q-3061 DRM Shortwave Radio can be operated via the inbuilt 240-volt linear power supply providing superior performance across the reception bands by eliminating any RF noise typically associated with switch-mode power

Amateur Radio Power Supplies

If you choose a linear power supply box, you benefit from higher transient response times.

MegaWatt Ham Radio Power Supply

We at MegaWatt Sell High Quality Power Supplies for Ham Radio, CB Radio, Linear Amplifiers, Shortwave Radio, HF and Audio Amplifies. Great RV and Car Battery Chargers too. They also

Linear power supply vs battery power for DAC | HiFiVision

I have read that linear power supply to a DAC can result in improvement of the sound. So my question is, should i try another power adapter (having linear power supply)? I

What portable shortwave radios come with AC power supply?

The included AC adapter for the Tecsun PL-680 https://

Low cost high quality excellent performing LPSU for audio.

A linear regulated power supply regulates the output voltage by dropping excess voltage in a series dissipative component. They use a moderately complex regulator circuit to

Diamond GSV3000 (30 Amp) Linear Power Supply

Variable 30A power supply featuring excellent technical data: The GSV-3000 has 30A continuous rating at 100% duty cycle, the DC output range is adjustable from 1 to 15 Volt with a maximum

Your First Power Supply – Linear or Switching?

Are you trying to choose between a linear and switching power supply for a new radio? There are several other factors to consider beyond linear vs. switching. However, for

Advantages and Disadvantages of Linear Power Supplies

Linear regulators are ideal for many low-power applications so when a higher power is needed, the disadvantages become more apparent. These disadvantages to linear

Low cost high quality excellent performing LPSU for audio.

Here''s a good table that explains the differences between SMPS and Linear (regulated) Power Supplies.The rest of the texts comes from Acopian (not my words!). For

Xiegu X6100

X6100 is an ultra-portable shortwave transceiver. It adopts the SDR software radio platform

S-Pixie DIY Kits Super CW QRP 7.023 MHz with Shell Large

Radio Station Power Supply Voltage is 9-13.8V (Battery or Linear Regulated Power Supply is Recommended), and the positive and Negative Poles are Not distinguished. Antenna: 50 ohm,

Linear vs Switching Power Supply: What''s the

Curious about the difference between a linear vs switching power supply? In this detailed blog post, we''ll unpack what you need to know to make the right. Introducing the

Linear power supply and battery for shortwave [PDF]

6 FAQs about [Linear power supply and battery for shortwave]

How many amps can a linear DC power supply sustain?

My objective is to design and build a very high quality, very safe, very stable 13.8v Linear DC Power Supply that can sustain up to 80 Amps at a 50% to 75% duty cycle, and 60 Amps full duty-cycle. At this stage, I've pieced together a design based on old schematics found while cruising the web that makes use of the LM723 voltage regulator.

What is a linear regulated power supply?

Application guides A linear regulated power supply regulates the output voltage by dropping excess voltage in a series dissipative component. They use a moderately complex regulator circuit to achieve very low load and line regulation. Linear regulated power supplies also have very little ripple and very little output noise.

Are SMPS a linear power supply?

And of course SMPS (switch-mode power supplies) have fundamental frequency well above the audio band, so unlike linear supplies there are no 50/60 or 100/120 Hz fundamentals and harmonics to corrupt the audio band (leakage excepted).

Why do you build a linear supply instead of a switcher?

Noise is of paramount concern. Noise is also why I'm building a Linear supply instead of a switcher. The simplistic design of a Linear is also why I'm building it instead of a switcher. The power input module that I'm using for this build has the filtering built into it. Line filtering never hurts, regardless of the installation specifics.

Can a linear PS withstand a short circuit?

It's silly to have all that input AC filtering on a linear PS unless you have a unique requirement. If you want it very safe, then it must withstand short circuit. 90A*20V=1800 W dissipation. You need very strong fans on every heat sinks to keep them not dangerously hot, or fold-back current limiting. Thanks for the comments.

What is a good power supply?

Design criteria - 13.8V, 80 AMPS at up to 75% duty-cycle, soft starting, over voltage protection, current limiting, short circuit protection, remote voltage sensing and automatic active cooling fan control (with replaceable dust filters). The power supply needs to look as GREAT as it performs.