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Comparison · Power supplies

PTA-600W-12V (600 W) or 68 V 600 W power supply

Two models side by side: measurements taken by the author in their reviews, and their conclusions. The better value in each row is highlighted.

In brief: Based on review measurements: Test current: PTA-600W-12V (600 W) (66 A vs. 10); Ripple: PTA-600W-12V (600 W) (250 mV vs. 650); Temperature rise: PTA-600W-12V (600 W) (135 °C vs. 240).

ModelPTA-600W-12V (600 W)PTA-600W-12V (600 W)2025Read review →68 V 600 W power supply68 V 600 W power supply2019Read review →
Current, A508.5
Power, W600600
Test current, A6610
Ripple, mV250650
Temperature rise, °C135240
Review conclusionWith reservationsWith reservations

Only in one review: Voltage 68 V (68 V 600 W power supply); In test 620 W (68 V 600 W power supply); Under load 62 V (68 V 600 W power supply); Efficiency 87 % (68 V 600 W power supply); No load 6 W (68 V 600 W power supply); Weight 1200 g (68 V 600 W power supply).

PTA-600W-12V (600 W): In practice, it is a 500–550 W supply: it overheats at 51 A and its voltage sags noticeably under load.

68 V 600 W power supply: After modifications, the author considers it acceptable, but notes hot snubbers, fan noise and unstable output voltage.

Figures were taken from the review text and checked against the quoted passages. Measurement conditions differ between reviews, so read the reviews yourself before buying. Prices at the time of review.

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