H03K 3/286 bistable
Introduced: September 1968
Full Title
Full titles differ between systems:
Circuits for generating electric pulses; Monostable, bistable or multistable circuits > Generators characterised by the type of circuit or by the means used for producing pulses > by the use, as active elements, of bipolar transistors with internal or external positive feedback > using means other than a transformer for feedback > using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator > bistable
Circuits for generating electric pulses; Monostable, bistable or multistable circuits (H03K4/00 takes precedence; for digital function generators in computers G06F1/02) > Generators characterised by the type of circuit or by the means used for producing pulses (H03K3/64 - H03K3/84 take precedence) > by the use, as active elements, of bipolar transistors with internal or external positive feedback (H03K3/023, H03K3/027 take precedence) > using means other than a transformer for feedback > using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator > bistable
Of 5 combined children, 4 exist in both systems.
1 codes are CPC-only extensions.
2 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1980.
Child Classifications
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- H03K 3/287 using additional transistors in the feedback circuit (H03K3/289 takes precedence) since 1980 IPC+CPC Available in IPC and CPC
- H03K 3/288 using additional transistors in the input circuit (H03K3/289 takes precedence) since 1980 IPC+CPC Available in IPC and CPC
- H03K 3/2893 Bistables with hysteresis, e.g. Schmitt trigger since 1995 IPC+CPC Available in IPC and CPC