HRWB003-Power Supplies

George and Jeremy take a look at power supplies for powering radios and working on electronic projects. They explain the differences between traditional radio power supplies and “lab” Constant Current / Constant Voltage power supplies. They also provide helpful tips on what to look for when selecting power supplies for your radio or your workbench.

Tim KE4KE Website - http://www.ke4ke.com

Vance N3VEM - http://www.n3vem.com

Packtenna Mini - http://www.packtenna.com/

YouTube Packtenna Mini Video - https://www.youtube.com/watch?v=z4RONXiPnkE&feature=share

New KJ6VU KX2 portable case video - https://www.youtube.com/watch?v=dfhqIH3wuk8

Bioenno LiFePO4 Batteries for ham use - https://www.bioennopower.com/collections/12v-series-lifepo4-batteries/products/12v-8ah-lfp-battery-abs-sealed-black-case?variant=1014198656

Raspberry Pi Clock - from N0BEL - http://n0bel.net/v1/index.php/projects/raspberry-pi-clock

2 Categories

“Ham” 12v PSU
Bench/Lab PSU

Ham “High Current” power supply considerations and tradeoffs

Linear vs Switch?

Variable Voltage vs Fixed Voltage?

Meters vs no meters?

What do you add as you go up in price?

Precision
Linearity
Low Noise/Low Ripple
More current/power
Computer connectivity/programmability

Linear 12V High Current Power Supply: Astron RS-35A - $180 - http://www.hamradio.com/detail.cfm?pid=H0-004434

Switching 12V with Analog Meters: Samlex 1235M - $130 - https://www.hamradio.com/detail.cfm?pid=H0-008965

Switching Variable Voltage with Meters: Powerwerx SPS-30DM - $160 - http://www.hamradio.com/detail.cfm?pid=H0-011684

Switching 12V: Powerwerx SPS 30DV - $110 - http://www.hamradio.com/detail.cfm?pid=H0-010662

Switching 12V Variable Voltage: Alinco DM-330MVT - $160 - http://www.hamradio.com/detail.cfm?pid=H0-003728

Power Supply Accessories

West Mountain Radio Rig Runners - http://www.westmountainradio.com/rigrunner.php
Low Loss Power Gate Battery Charging System - $50 - http://ki0bk.no-ip.com/~pwrgate/LLPG/Site/LLPG.html
West Mountain Radio Super PWRGate PG40S - $140 - http://www.hamradio.com/detail.cfm?pid=H0-007770
PwrGuard Plus Low Voltage Disconnect - http://www.westmountainradio.com/product_info.php?products_id=pwr_guard
Anderson Power Poles
Crimper - https://powerwerx.com/tricrimp-powerpole-connector-crimping-tool

Workbench Power Supply - What specs do you care about?

0-20v or more
- Single ended 0-20v - voltage reference to ground
- Maybe Dual ended +/- 15 volts
Low ripple (
2-5 amps
Meters for Volts and Current (digital or analog)
Current limiting adjustment
Resettable output breaker
Short circuit protection

Test Leads - banana plug to whatever you need to connect to

What do you add as you go up in price?