HV9906DB2 データシートの表示（PDF） - Supertex Inc

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HV9906DB2

Off-Line Current Source Controller

Supertex Inc 

The Supertex SuperNova Powers the Luxeon Star

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PCB Layout:

400mA (700mA when potted)

Small 25mm x 25mm x 11mm size

High reliability

No electrolytic capacitors

Operates directly off AC line (85VAC<Vin<135VAC)

Maintains regulation down to 20VDC input

Fig. 1 - Top view

Waveforms:

Fig. 2 – Bottom view

Fig. 3 – Output Current (Vin = 120VDC)

Fig. 5 – Input Current and Voltage (Vin = 120VAC)

Fig. 4 – Output Current (Vin = 120AC)

Waveform Summary:

Fig. 3 shows continuous nature of the output

current. Peak-to-average current ratio is close to

unity.

Fig. 4 shows that current drops out of regulation

for short periods of time only during the AC line

cusps. (Switching ripple component is attenuated

for clarity.)

Fig. 5 shows the input current nature. The

converter delivers full output power to the output

down to very low input voltage.

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