SPRSP68B January 2023 – November 2023 TMS320F2800152-Q1 , TMS320F2800153-Q1 , TMS320F2800154-Q1 , TMS320F2800155 , TMS320F2800155-Q1 , TMS320F2800156-Q1 , TMS320F2800157 , TMS320F2800157-Q1
PRODMIX
Refer to the PDF data sheet for device specific package drawings
A line-interactive UPS maintains the DC/AC inverter in line and charges a battery under normal condition when AC power is available. When AC power is lost, the UPS generates AC power from the battery.
For this type of UPS, an AC power inverter is always connected to the output of the UPS. When the input AC power is normal, the inverter of the UPS is in reverse operation (AC/DC mode) and provides battery charging. Once the input power fails, the transfer switch opens and the power flows from the battery to the UPS output. This is indicated in the diagram below. The transfer switches S1 and S2 connect to the "Line_ON" position when AC power is available. When there is a power failure, S1 and S2 take the "Line_OFF" position.
Line-interactive UPS systems are a cheaper option than the online double-conversion technology and will protect a critical load from power failures, power sags, power surges, undervoltage and overvoltage. However, this type of UPS does not protect against electrical line noise, frequency variation, switching transient, and harmonic distortion.