The flyback converter
is the most commonly used topology for small and medium size power
supplies. The Peakclamp is a clamping circuit,
built on the ASD (application Specific Devices)
technology, intended for protecting the primary switch against
over-voltage spikes. It consists of a blocking 700V diode and
a Transil™ with a breakdown voltage of 160V connected in
series in a DO-15 axial package.
With a maximum continuous power dissipation of 1.5W for a lead
temperature of 90°C, the device is well suited for state-of-the-art
power supplies up to 25W (battery chargers, low power opened frame
converters and adapters). This range of applications can be extended
with the use of transformers with very small leakage inductance. |
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