AS-103中文资料

Applications

Isolated current feed-back signal in Switch Mode Power Supplies ? Motor current load/overload ? Lighting ? Switch Controls Ultra-sound current ? High resolution sonar current ? Isolated bi-directional current sensor with full wave bridge rectifier AS Series Current Sensors are designed as a low cost method of controlling, monitoring or measuring AC currents. The sensors serve as feedback elements between the output and pulse control circuitry providing accurate regulation of switch mode power supplies.

Primary Sense Current

Notes:1)L sec : Secondary inductance tested at 10kHz and 10mV for 1:50 through 1:500Prim./Sec. ratios and 1kHz/10mV for Prim./Sec. ratio of 1:7502)

This nominal termination resistance value will yield approximately 1.0V of output for each amp of current in a single turn sense line. The output Voltage/Ampere of these devices can be increased or decreased linearly over a restricted temperature range by adjusting the terminating resistance.3)

For Prim./Sec. Ratios of 1:50 through 1:500, the I sec value corresponds to a maximum primary current of 15 Amp-turns rms while the Isec value for the ratio of 1:750 corresponds to a max. primary current of 30 Amp-turns rms.

4)

VμS = R t x Is x Rt (Ohms): Recommended Terminating Resistance I s (A): Secondary Current F (Hz): Frequency 5)

Operating Temperature Range: -40°C to +120°C 6)Pin 2 is on Center-Tapped (CT) versions only

Electrical Specifications at 25°C

9.53

1

2F

Features

?Fully encapsulated for optimal PC board mounting ?Frequency range from 20kHz to 200kHz ?Primary current rating to 30 Amps

?Primary to secondary isolated to 2500 VAC ?Meets VDE norms

?Optimum performance over designated current and frequency range

?Competitive pricing due to high volume production ?Manufactured in an ISO-9001:2000, TS-16949:2002and ISO-14001:2004 certified facility ?Fully RoHS compliant

Type 1

Type 2

Electrical Specifications at 25°C

Features

?Meets requirements of IEC 950 and VDE norms ?Operating Temperature Range: -40°C to +120°C ?

UL94, VO recognized materials

?Primary to secondary isolated to 4000 VAC ?Operating frequency range from 20kHz to 200kHz ?Primary current rating to 80 Amps

0.60 x 0.88 mm

Type A

Type B