In order to meet the critical needs of the high-brightness LED market, Fairchild Semiconductor has introduced the primary-side regulated pulse width modulation controllers FAN100 and FSEZ1016A, which simplify design, reduce board space, and provide important Performance advantage. The FSEZ1016A is an EZSWITCH PSRPWM controller that integrates a primary-side regulated PWM controller and a power MOSFET, while the FAN100 is a primary-side regulated PWM controller. Through this integration, these controllers achieve the most accurate constant current control with their built-in proprietary TRUECURRENT technology and tight pressure range without the need for a secondary-side feedback circuit. Since the constant current over a wide voltage range is tightened, the same circuit can be used for a different number of strings of LEDs, increasing design flexibility, reducing time to market, and extending the life of HBLEDs. Because of the high degree of integration of these PSRPWM controllers, board space can be saved to match the trend of shrinking bulb sizes.
The FSEZ1016A and FAN100 feature a proprietary power-saving mode that provides turn-off time modulation to linearly reduce the PWM frequency under light load conditions. In addition, they can minimize power consumption by reducing the secondary side feedback circuits and components (standby power <0.15W without load). All of these energy-saving features are essential to enable power supplies to meet stringent energy efficiency regulations. In addition, these PSRPWM controllers provide robust protection features such as undervoltage lockout (UVLO), overvoltage protection (OVP), and overtemperature protection (OTP).
Fairchild's PSRPWM controllers enhance their broad portfolio of power-efficient electronics for power-sensitive applications such as power adapters, power supplies, lighting, computing, industrial control and home appliances. Maximize energy savings.
(Edit: Sandwich)
Aerial Insulated Cables Within Rated Voltage Up To Including 0.6/1KV
1. Product standard
The product is manufactured according to the standards of GB12527-90 [Aerial insulated cables of rated voltages up to and including 1KV" and IEC60502 [Extruded solid dielectric power cables for rated voltage from 1KV to 30KV" .
2. Operating characteristics
a. Rated voltage U0/U: 0.6/1kV
b. Max.permissible continuous temperature:
PVC.PE insulated aerial cables:70℃
XLPE insulated aerial cables:90℃
c. Max. short-circuit temperature of the conductor shall not exceed:
PVC insulated aerial cables:160℃;
PE insulated aerial cables:130℃;
XLPE insulated aerial cables:250℃.
d. The installation ambient temperature should not below -20℃.
The bending radiuses of cables are recommended as follows:
When the diameter of cables less than 25mm: not less than 4 times the diameter of cables;
When the diameter of cables not less than 25mm: not less than 6 times the diameter of cables.
e. When the cables use in alternating current system, rated voltage of cables should be at least equal the rated voltage of the system; When the cables use in direct current system, rated voltage should be not greater than 1.5 times of the rated voltage of the cables.
3. Type of cables and main usage
Type of cable:
JKV: Copper conductor PVC insulated aerial cables
JKLV: Aluminum conductor PVC insulated aerial cables
JKY: Copper conductor PE insulated aerial cables
JKLY: Aluminum conductor PE insulated aerial cables
JKYJ: Copper conductor XLPE insulated aerial cables
JKLGV: ACSR conductor PVC insulated aerial cables
JKLGY: ACSR conductor PE insulated aerial cables
JKLGYJ: ACSR conductor XLPE insulated aerial cables
Main usage:
The cables fit for overhead fixed-installation, service line and so on.
4. Construction of cable
1) Conductor
2) Steel core
3) Insulation
4) Conducor screen
Steel ACSR Power Cable,Hot Dip Galvanized Power Cable,Conductor Power Cable,Overhead Power Cable
Huayuan Gaoke Cable Co.,Ltd. , http://www.bjhygkcable.com