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Grey metal desktop bench power supply with digital display, knobs and binding posts

myVolts

myVolts DPS-305BM 0-30V 0-5A bench power supply

SKU CH-WCS2-JVD30 MPN DPS-305BM

Adjustable 0-30V and 0-5A desktop supply with short-circuit protection and a cooling fan

  • TypeAT
  • Adjustable 0–30 V output with 0.1 V resolution
  • 0–5 A constant current adjustable in 0.01 A steps
  • Voltage stability better than 0.01 % plus 3 mV
  • circuit and over-current protection with built-in cooling fan
  • Compact metal chassis weighing 2039 g measuring 265 × 128 × 150 mm

Bench Supply for Hobby & Repair

The myVolts DPS-305BM is a desktop bench power supply that delivers 0-30V at up to 5A for powering cellular phones, scanners, radios and similar low-voltage devices. It operates from 220V mains with a 110V option and includes a cigarette-lighter socket adapter for portable equipment.

Install & Common Issues

The unit weighs 1.5kgs with a metal casing and rubber feet, so it sits securely on a bench without extra mounting. A built-in cooling fan prevents overheating, while short-circuit and over-current protection guard both the supply and connected gear; the noise offset control can be tuned to remove pulse noise that sometimes appears with sensitive loads.

Practical Limits of the Adjustable Output

Voltage is adjustable in 0.1V steps with 0.5%+2 precision and stability better than 0.01%+3mV; current adjusts in 0.01A steps up to 5A with ±(1%+2) accuracy. Ripple and noise stay below 1% VP-P, recovery time is 100us, and the supply is rated for 0-40°C operation at 80% humidity.

Points forts

  • Adjustable 0–30 V output with 0.1 V resolution
  • 0–5 A constant current adjustable in 0.01 A steps
  • Voltage stability better than 0.01 % plus 3 mV
  • circuit and over-current protection with built-in cooling fan
  • Compact metal chassis weighing 2039 g measuring 265 × 128 × 150 mm

Caractéristiques

TypeAT

Questions sur cet article

How do I verify the unit is regulating correctly after I connect a load?

Watch the display for the one-key voltage/current readout; in constant-voltage mode the output should hold within <0.01%+3 mV load stability and <1% Vp-p ripple, and in constant-current mode the current should stay within <0.1%+3 mA load stability with <1% Ap-p noise.

Which accessories are included and what must I source separately?

The box contains the bench supply and a mains plug (EU or US style shipped at random); test leads, banana cables or a cigarette-lighter adapter for the front socket are not supplied.

Should I choose the EU-plug or US-plug version for 220 V ±10 % mains?

Both versions accept 220 V ±10 % 50/60 Hz; select the plug that matches your local socket — EU or US — since the internal voltage range is identical.

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