In architectures based on the use of power optimizers, the maximum power point tracking (MPPT) function is performed at the level of each photo-voltaic panel so they all operate at their maximum power point. This results in an improved energy yield of the overall solar system compared to traditional string or central inverter based architectures.
Power optimizers can help minimize a system’s design constraints as well as improve reliability and safety – by helping ensure compliance with the latest NEC 2017 regulations that require rapid shut-down in the event of grid disconnection, while at the same time reducing maintenance costs.
We provide high-performance STM32 microcontrollers as well as high-efficiency silicon-carbide, SiC MOSFETs and diodes, trench-gate field-stop IGBTs, galvanically-isolated gate drivers and Power Line communication solutions to help achieve superior efficiency and reliability for the implementation of power optimizer based architectures.
Power optimizer block diagram
eDesignSuite
Interfaces and Transceivers
| Part number | Description |
|---|---|
| ST8500 | Programmable power-line communication modem system-on-chip |
MEMS and Sensors
| Part number | Description |
|---|---|
| HTS221 | Capacitive digital sensor for relative humidity and temperature |
| IIS2DH | 3-axis digital accelerometer, ultra low-power high performance MEMS motion sensor |
| IIS3DHHC | High-resolution, high-stability 3-axis digital inclinometer for industrial applications |
| LM135 | Precision Temperature Sensor |
| LPS22HB | Ultra-compact piezoresistive absolute pressure sensor, 260-1260 hPa, digital output barometer, full-mold, holed LGA package (HLGA) |
| STLM20 | Analog temperature sensor, ultra-low current 2.4 V, high precision |
| STTS751 | 2.25 V low-voltage local digital temperature sensor |
Power Management
| Part number | Description |
|---|---|
| ALTAIR04-900 | Off-line all-primary-sensing switching regulator |
| ALTAIR05T-800 | Off-line all-primary-sensing switching regulator |
| L6985F | 38 V 500 mA synchronous step-down switching regulator with 30 uA quiescent current |
| L6986F | 38 V 1.5 A synchronous step-down switching regulator with 30 uA quiescent current |
| L7985 | 2A step-down switching regulator |
| L7986 | 3A step-down switching regulator |
| L7987 | 61 V 3 A asynchronous step-down switching regulator with adjustable current limitation |
Power Transistors
| Part number | Description |
|---|---|
| STL110N10F7 | N-channel 100 V, 5 mOhm typ., 107 A STripFET F7 Power MOSFET in a PowerFLAT 5x6 package |
