Power inductors achieve fast transient response of TLVR power supply

?? With the continuous improvement of computing power, the amount of data transmitted through various connections is increasing exponentially, and the demand for information processing in data centers has surged to support the rapid development of technologies such as large models and artificial intelligence.

?? Under such market development trends, semiconductor processors such as CPUs, GPUs, and FPGAs are constantly optimized in manufacturing processes and rapidly developing towards miniaturization, with significantly enhanced data processing capabilities. Driven by the continuous improvement of the capabilities of these core processors, the power supply circuits that match them have also undergone tremendous changes.TLVR in power supply circuits

?? Advanced processors are moving towards smaller sizes, resulting in lower power supply voltages used in them, but the current consumed has increased significantly, and the power consumption of advanced processors has been rising. Many industry manufacturers predict that power consumption will become the biggest constraint on the further development of advanced computing.One of the problems caused by low voltage and high current characteristics is how the power supply circuit responds to rapid load fluctuations. In a circuit where the voltage is already very small, it is very difficult to maintain a stable and reliable voltage output under large current load fluctuations.

?? In order to meet the needs of today's advanced processors for power circuits, TLVR is a very common circuit configuration for dealing with rapid load fluctuations in low-voltage and high-current applications, that is, power supply voltage regulation across inductors. The principle is to use the coupled inductor secondary winding to connect a series tuned inductor to increase the coupling current, thereby quickly increasing the transient current response speed.

?? In the TLVR circuit configuration, each phase switch is connected to an inductor with an additional winding, and then the winding of each phase and the compensation inductor are connected in series to form a loop. The TLVR configuration greatly improves the power supply capability, enabling these advanced processors to achieve higher transient response performance, while reducing power loss, and also reducing overall size and system cost.Inductors for TLVRIn TLVR, the selection of inductors is very critical, which greatly affects whether the power supply configuration can meet the performance requirements of today's data-driven applications. TLVR power inductors can provide critical regulation capabilities to the circuit, maintain continuous current by accumulating and releasing energy, and can provide high current and high inductance for power supply systems of different voltage levels.