H - Electricity – 03 – L
Patent
H - Electricity
03
L
324/33, 331/35
H03L 7/08 (2006.01) H03L 7/085 (2006.01)
Patent
CA 1164963
PHASE LOCK SYSTEM Abstract A second-order phase-locked loop circuit which does not require error voltage amplification is de- scribed. The output of a voltage controlled oscillator is accurately phase locked to a reference pulse. The loop phase detector is periodically enabled by a pulse generator and draws current only when enabled. There- fore very little noise may be coupled to the voltage controlled oscillator. The phase detector incorporates a current amplifier which allows very accurate estab- lishment of the instant phase comparison takes place.
367663
Kirby Eades Gale Baker
Tektronix Inc.
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