For instance, the loss might be less than 1W for a 500W power supply line, representing less than 0.2%.Ĭommonly Used Snubbers in Practical Applications There are some minor losses, but they are negligible compared to the power flowing from the power supply line. On the other hand, non-lossy snubber circuits are ideally lossless on paper, but this is not what happens practically. In most cases, the snubber losses are low and tolerable, so circuit designers use this type for quick & easy designs. This device selection depends on the suppression level required for the transient voltage spike and ringing frequency. The power losses in a dissipative circuit depend on the snubber device's selection. Lossy and Non-lossy Snubber Power Loss Comparison However, it is complex to design and expensive to build. It is super-efficient and consists of inductors and capacitors. However, it is not energy efficient and not ideal for power supplies that need high efficiency.Īs the name suggests, this circuit is the opposite of the lossy/ dissipative type. It is easy to design because it requires only a simple diode and a resistor as the dissipating elements. The following are the two general classifications of snubber circuits.Ī lossy or dissipative snubber circuit draws power from the device. A Transient Voltage Suppressor Source: Wikimedia Commons General Classifications of Snubber
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