Outdoor power supply high frequency machine

Controlled by microprocessor, directly produce high-frequency pulse width modulation wave (SPWM) to control for UPS inverters, simplifying the control circuit of ups outdoor, to improve the stability of. [pdf]

Base station high frequency power supply circuit

A base station comprises multiple transceivers (TRX); each TRX comprises a radio-frequency (RF) power amplifier (PA), an RF small-signal section, a baseband (BB) interface including a transmitter (downlink) and receiver (uplink) section, a DC/DC PA power supply, an active cooling system, and an upstream isolation stage to convert from -48 VDCor AC mains voltage. [pdf]

Lithium battery power supply system

A lithium UPS battery system is a type of uninterruptible power supply that uses lithium-ion or lithium iron phosphate (LiFePO₄) batteries to provide emergency power during outages or voltage fluctuations. [pdf]