Ramp generator for harmonic tuned deflection

Details Ramp generator for harmonic tuned deflection Ramp generator for harmonic tuned deflection

1977-12-27

1979-01-09

Grimm, Siegfried H.

Oscillators

Automatic frequency stabilization using a phase or frequency...

With reference oscillator or source

331 25, 358159, H03B 304, H04N 504

Patent

active

041340825

ABSTRACT:
A horizontal oscillator phase-lock loop arrangement compares synchronizing pulses with recurrent ramp signals derived from the horizontal retrace pulses to control the deflection frequency. The ramp signals are generated by a capacitor charged during the retrace interval through a diode from a reference voltage established by a clamp.

REFERENCES:
patent: 2912651 (1959-11-01), Leeds
patent: 3764744 (1973-10-01), Van Hattum et al.
RCA Television Service Data File 1975 C-10, Figure 21. CTC 74K Deflection and Power Supply Schematic.

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