USB switch


This circuit make possible disconnecting a USB device pernamently connected to the PC motherboard (i.e. card reader in PC case) if isn’t in use.







 
Parts:
R1, R2 10 kohm, SMD 1206
R3 100 kohm, SMD 1206
ZD1 8V2, SOD80 Zener. dioda
(6V8 až 18V)
T1, T2 BSS138, SOT23, code mark SS
Sw externí spína? / external switch
4 nebo 6 pin? kolíková lišta
4 or 6 pins header
4 nebo 6 pin? ditinková lišta
4 or 6 pins plug
deska s plošnými spoji bcs57

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