The power dissipated by a capacitor is a function of ripple current and equivalent series resistance, being one of the key parameters to consider when selecting a capacitor for a specific application
Knowing the relative strengths of electrolytic and film capacitors for power-conversion applications can help designers make the right choices for optimum overall size, weight, and BOM cost
PTC thermistors are used as ICLs (inrush current limiters) to protect circuits of electrical and electronic devices against inrush currents easily and effectively.
Devices in the new METCOM series are ideal for developing more efficient DC to DC switching power supplies as well as other power-related applications including EMI filtering.
Today, one can hardly find a consumer, industrial or high-reliability electronic device that does not make use of a voltage regulator. Designers basically use two types of regulators, linear LDO (low dropout) and step-down switch-mode DC/DC regulators to convert the voltage to lower level. Switching DC/DC regulators are preferred for applications that require a greater difference between input and output voltages because they are more efficient in such operating conditions.
This is the first of the two articles devoted to the topic of an RC snubber design. In Part I, we discuss the fundamentals of inductive switching and the need for circuit protection. The impact of an RC snubber on the circuit performance is demonstrated through a series of simulations. Part II (to appear in the March 2019 issue of In Compliance) will address the systematic process of the snubber circuit design, together with the simulation and verification through the laboratory measurements.
The type and amount of capacitors to be used mainly depend on the operating conditions of the power supply. Selecting suitable filtering capacitors helps to maximize the reliability of an SMPS.