Texas Instruments UCC28060EVM Efficiency at 230 VRMS, With and Without Phase Management

Typical Performance Data www.ti.com

Efficiency at Vin = 230V RMS

	99.0%
	97.0%
	95.0%
(%)
Efficiency	93.0%
	91.0%
	89.0%
							With Phas e M anage m e nt
	87.0%
							Without Phas e M anage m e nt
	85.0%
	10%	20%	30%	40%	50%	60%	70%	80%	90%	100%
					% Output Pow er

Figure 6. Efficiency at 230 VRMS, With and Without Phase Management

Amplitude(A)￿

1.40706 VIN =￿230VRMS

1.17256

0.93805

0.70354

0.46904

0.23453

0.00002

0 6 12 18 24 30 36 42 48

Harmonic￿No.

Figure 7. Current Harmonics

6	UCC28060EVM 300-W Interleaved PFC Pre-Regulator	SLUU280B–May 2007–Revised July 2008
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