DIFF Subgroup
H03K 4/50 in which a sawtooth voltage is produced across a capacitor
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Generating pulses having essentially a finite slope or stepped portions > having triangular shape > having sawtooth shape > using as active elements semiconductor devices > in which a sawtooth voltage is produced across a capacitor
CPC:
Generating pulses having essentially a finite slope or stepped portions > having triangular shape > having sawtooth shape > using as active elements semiconductor devices (H03K4/787 - H03K4/84 take precedence) > in which a sawtooth voltage is produced across a capacitor
IPC and CPC are identically structured here. All 5 subcodes exist in both systems.
Child Classifications
Navigate with arrow keys, Enter to open
- H03K 4/501 the starting point of the flyback period being determined by the amplitude of the voltage across the capacitor, e.g. by a comparator since 1995 IPC+CPC Available in IPC and CPC
- H03K 4/52 using two semiconductor devices so coupled that the input of each one is derived from the output of the other, e.g. multivibrator IPC+CPC Available in IPC and CPC
- H03K 4/54 using a single semiconductor device with positive feedback through a transformer, e.g. blocking oscillator IPC+CPC Available in IPC and CPC
- H03K 4/56 using a semiconductor device with negative feedback through a capacitor, e.g. Miller integrator IPC+CPC Available in IPC and CPC