TherearetwomajorkindsofLEDdrivemethod"directdrive"and"withLEDdriver".

TypicalLEDpowersupplyI-Vcurve

A typicalLEDpowersupplymayeitherworkin"constantvoltagemode(CV)orconstantcurrentmode(CC)"todrivetheLEDs.

Mean Well's LED power supply with CV+ CC characteristic can be operated at both CV mode (with LED driver, at area (A) and CC mode (direct drive, at area (B).

DRIVINGMETHODSOFLEDMODULE

EFFICIENCY vsLOAD(48VModel)

HLG-185Hseriespossesssuperiorworkingefficiencythatupto94%canbereachedinfieldapplications.

LOAD

65

67

69

71

73

75

77

79

81

83

85

87

89

91

93

95

97

10%

20%

30%

40%

50%

60%

70%

80%

90% 100%

230VAC

110VAC

EFFICIENCY vsLOAD(48VModel)

HLG-150Hseriespossesssuperiorworkingefficiencythatupto94%canbereachedinfieldapplications.

LOAD

100

50

50

100

Io (%)

Constant

Voltage area

Constant

Current area

(A)

(B)

0 .8 4

0 .8 6

0 .8 8

0 .9

0 .9 2

0 .9 4

0 .9 6

0 .9 8

1

1 .0 2

6 0 %

7 0 %

8 0 %

9 0 %

1 0 0 %

2 3 0 V A C

1 1 0 V A C

PowerFactorCharacteristic

Powerfactorwillbehigherthan0.9whenoutputloadingis60%orhigher.

LOAD

ConstantCurrentMode

150WSingleOutputSwitchingPowerSupply

FileName:HLG-150H-SPEC 2011-01-31