UCx854 High-Power Factor Preregulator

1 Features 1• Control Boost PWM to 0.99 Power Factor • Limit Line-Current Distortion to

文件：1.35319 Mbytes 页数：31 Pages

TI

德州仪器

ENHANCED HIGH POWER FACTOR PREREGULATOR

文件：138.1 Kbytes 页数：6 Pages

UTC

友顺

High Power Factor Preregulator

文件：281.85 Kbytes 页数：9 Pages

TI

德州仪器

High Power Factor Preregulator

文件：313.69 Kbytes 页数：12 Pages

TI

德州仪器

ENHANCED HIGH POWER FACTOR PREREGULATOR

The UTC UC3854 provide all the functions necessary for activepower factor corrected preregulators. The controller achieves nearunity power factor by shaping the AC input line current waveform tocorrespond to that of AC input line voltage. Average current modecontrol maintains stable, low distortion such as wide bandwidth, low offset Current Amplifier,a faster responding and improved accuracy enable comparator, aVREF \"good\" comparator, UVLO threshold options (16/10V foroffline, 10.5/10V for startup from an auxiliary 12V regulator), lowerstartup supply current, and an enhanced multiply/divide ;

UTC

友顺

支持 50Hz 至 400Hz 范围内线路频率、温度范围为 0°C 至 70°C 的双极性 CCM PFC 控制器

The UC1854 provides active-power factor correction for power systems that otherwise would draw non-sinusoidal current from sinusoidal power lines. This device implements all the control functions necessary to build a power supply capable of optimally using available power-line current while minimizi • Control Boost PWM to 0.99 Power Factor\n• Limit Line-Current Distortion to;

TI

德州仪器

ENHANCED HIGH POWER FACTOR PREREGULATOR

DESCRIPTION The UTC UC3854 provide all the functions necessary for active power factor corrected preregulators. The controller achieves near unity power factor by shaping the AC input line current waveform to correspond to that of AC input line voltage. Average current mode control maintains

文件：309.42 Kbytes 页数：6 Pages

UTC

友顺

UCx854 High-Power Factor Preregulator

1 Features 1• Control Boost PWM to 0.99 Power Factor • Limit Line-Current Distortion to

文件：1.35319 Mbytes 页数：31 Pages

TI

德州仪器

UCx854 High-Power Factor Preregulator

1 Features 1• Control Boost PWM to 0.99 Power Factor • Limit Line-Current Distortion to

文件：1.35319 Mbytes 页数：31 Pages

TI

德州仪器

丝印：UC3854DW；Package：SOIC；UCx854 High-Power Factor Preregulator

1 Features 1• Control Boost PWM to 0.99 Power Factor • Limit Line-Current Distortion to

文件：1.35319 Mbytes 页数：31 Pages

TI

德州仪器