Thoughts on another EEVblog
Having got into a browsing chain on EEVblog, I came across EEVblog 262 ‘World’s Simplest Soft Latching Power Switch Circuit’ (right), where David Jones makes a simple latching power supply switch operated by a single push button.
He talks it through in an excellent thorough and educational way.
Pondering this, I wonder if one more transistor could be removed with the following circuit (left).
Although this one might:
Not work at all
Need a noticable gap between operations
Need a small resistor in series with the push button to save its contacts from being eroded
, power supply
, push button
, Simplest Soft Latching Power Switch Circuit
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