Datasheet > HV9906DB4

HV9906DB4

更新时间： 2024-01-26 21:43:22

品牌	Logo	应用领域
超科 - SUPERTEX		控制器
页数	文件大小	规格书
3页	220K
描述
Off-Line Current Source Controller

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HV9906DB4 数据手册

HV9906DB4

Off-Line Current Source Controller

Introduction

HV9906DB4 demo board features passive power

The HV9906DB4 provides a constant current of

750mA. It contains all circuitry necessary to

demonstrate the features of the HV9906 second

order power supply controller. A power converter of

the demo board consists of an input buck-boost stage

and an output buck stage. The output voltage polarity

is negative. Due to its unique quadratic input-to-

output DC voltage transfer ratio, the converter can

operate directly off AC line to produce low-voltage

output without need for electrolytic capacitors. The

HV9906 is designed for optimally controlling this type

of power converter or other types of two-stage multi-

converters.

factor correction to PF>0.95, open circuit protection

and under voltage lockout.

Specification

Input Voltage

Output Current

Output Voltage

Efficiency

80 to 135VAC, 60Hz

750mA ±10%

20V Max

64% at Io=750mA, Vin=100VAC

The board is optimized for driving a 10V-20V, 750mA

load. However, it may be modified to meet custom

requirements (up to 80V or 1.5A).

Board Layout and Connections

TOP SIDE

BOTTOM SIDE

80-135 VAC

Radj (external)

WARNING!!!

Do not connect to scope ground or to the ground of other earth-grounded instruments. Doing so will short the AC line,

resulting in damage to the circuit and/or instruments. Either use an isolation transformer on the AC line, use a

differential probe, or use a floating, battery-powered instrument to make measurements.

WARNING!!!

No galvanic isolation. Dangerous voltages are present when connected to the AC mains.

07/23/2002

Supertex, Inc. 1235 Bordeaux Drive, Sunnyvale, CA 94089 TEL: (408) 744-0100 FAX: (408) 222-4895 www.supertex.com

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