Infineon automotive HID headlight ballast and PFC control solution is mainly composed of 5 MOSFETs, 2 high voltage drivers, 1 PFC controller and 1 HID lamp ballast controller, the specific circuit is shown in the following figure .
Infineon car HID headlight ballast and PFC control scheme circuit schematic.
MOSFET can choose Infineon's N-channel MOSFET (500V or 600V CoolMOS C3 / CoolMOS CP),
PFC controller can choose Infineon's DCM PFC-IC (TDA4863-2) or CCM PFC-IC (ICE1PCS01 / 02).
The active power factor controller TDA4863-2 is the latest PFC-DCM (discontinuous conduction mode) control IC for Infineon's switching power supply (SMPS). The first two generations of products are TDA4862 and TDA4863. They are mainly optimized for providing very compact and cost-effective PFC solutions for electronic ballasts and offline SMPS, fully compatible with world standards. By using a zero current detector for discontinuous operation mode, they allow to achieve a power factor close to unity and outstanding THD.
The main features of TDA4862, TDA4863 and TDA4863-2 include: 1) Power factor close to 1; 2) Control boost converter like active harmonic filter to get lower THD; 3) Low current start; 4) Zero current detector for discontinuous operation mode; 5) Output overvoltage protection; 6) Output undervoltage lockout; 7) Internal start timer; 8) Totem pole output with active shutdown function; 9) Internal edge blanking LEB; 10) Sinusoidal current consumption.
Compared with TD4862, the improvements of TDA4863 and TDA4863-2 are: 1) very low starting current; 2) very low comparator and multiplier offset; 3) high complexity amplifier for low distortion interference caused by MOSFET switching; 4 ) More accurate overvoltage threshold; 5) Higher gate drive capability (TD4863-2 only).
Active power factor controller ICE1PCS01 / 02 is an 8-pin control IC launched by Infineon for active CCM (continuous conduction mode) power factor correction converter
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