LED Traffic Signals

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Whether for traffic lights or message panels, the use of LED traffic signals is increasingly widespread in both permanent and portable, battery-operated systems with photo-voltaic panels. In addition to the basic display function – with ambient light sensors to adjust for brightness – traffic signals can be connected to a control center for re-programming and monitoring purposes and might have GPS tracking to enable effective monitoring and maintenance.

We offer a complete range of LED driving and AC-DC and DC-DC conversion solutions together with environmental MEMS sensors and 32-bit STM32 microcontrollers as well as wireless and wired connectivity solutions to help develop advanced traffic signal solutions.

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Technical Documentation

Application Notes

Description	Version	Size	Action
AN5034 12 V - 210 W converter based on STCMB1, combo TM PFC, HB LLC and SRK2001, adaptive SR controller	2.0	7.59 MB	PDF
AN5106 150 V – 150 W LED driver using the STCMB1 transition mode PFC and HBR resonant tank combo controller	3.0	6.17 MB	PDF
AN5335 35W transition-mode flyback converter with ultra-low THD based on HVLED007	1.2	3.36 MB	PDF
AN2809 6-row / 30-mA LED driver with boost converter for the backlight of LCD panels	2.2	720.11 KB	PDF
AN2810 6-row 85 mA LED driver with boost converter for LCD panel backlighting	1.2	572.48 KB	PDF
AN4607 Basics on the thyristor (SCR) structure and its application	2.0	317.41 KB	PDF
AN5264 EVL400W-EUPL7 400W SMPS demonstration board	2.0	6.03 MB	PDF
AN5351 EVL80WLED-STCH03: 80W-1A primary side current loop control LED driver with STCH03 for street lighting applications	1.0	6.21 MB	PDF
AN2680 Fan speed controller based on STDS75 or STLM75 digital temperature sensor and ST72651AR6 MCU	1.4	125.82 KB	PDF
AN2531 Generating multicolor light using RGB LEDs	2.2	865.76 KB	PDF
AN4496 How to get a high power factor with the HVLED815PF device	1.0	365.44 KB	PDF
AN4608 How to select the right thyristor (SCR) for your application	1.0	895.7 KB	PDF
AN934 How to use the digital calibration feature in TIMEKEEPER® and serial real-time clock (RTC) products	4.1	123.42 KB	PDF
AN1216 Implementing a periodic alarm with TIMEKEEPER® and serial real-time clocks (RTCs)	2.0	192.89 KB	PDF
AN2648 Increasing the resolution of analog temperature sensors	1.4	161.7 KB	PDF
AN4606 Inrush-current limiter circuits (ICL) with Triacs and Thyristors (SCR) and controlled bridge design tips	2.2	1,008.92 KB	PDF
AN3981 LED array drivers	1.1	3.61 MB	PDF
AN2141 LED array reference design board	3.2	305.16 KB	PDF
AN3168 Non-insulated SCR / Triac control circuits	1.2	315.8 KB	PDF
AN5046 Printed circuit board assembly recommendations for STMicroelectronics PowerFLAT packages	4.0	4.82 MB	PDF
AN303 Thyristors and TRIACs: latching current	3.4	164.96 KB	PDF

AN5034

12 V - 210 W converter based on STCMB1, combo TM PFC, HB LLC and SRK2001, adaptive SR controller

Description	Version	Size	Action
800-1050V MDmesh™ K5 ST’s first super-junction VHV MOSFET Series	1.0	516.44 KB	PDF
HVLED: Lighting the future	12.2018	700.32 KB	PDF
LED770x LED drivers	1.0	562.13 KB	PDF
STTS75	2.2	706.56 KB	PDF

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