Oscillators – Combined with particular output coupling network – Space discharge or unilaterally conductive device in output...
Patent
1995-07-20
1997-07-08
Grimm, Siegfried H.
Oscillators
Combined with particular output coupling network
Space discharge or unilaterally conductive device in output...
331 47, 331 57, 331 66, 331111, 331176, 365222, H03B 502, H03K 30231
Patent
active
056465793
ABSTRACT:
A temperature sensitive oscillator circuit and control circuit which together form a current source. The temperature sensitive oscillator circuit generates an output signal which controls a frequency of a refresh oscillator circuit. The duty cycle of the output signal of the temperature sensitive oscillator circuit is temperature dependent and increases for increases in temperature. The output signal of the temperature sensitive oscillator circuit controls the control circuit which sources current between the refresh oscillator circuit and a supply node. As the duty cycle of the output signal of the temperature sensitive oscillator circuit increases a time duration during which the control circuit sources current between the refresh oscillator circuit and the supply node increases. This increase increases the frequency of the output signal of the refresh oscillator circuit. The output signal of the refresh oscillator circuit is an internal clock signal which controls a refresh cycle of a memory circuit.
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Colleir Susan B.
Grimm Siegfried H.
Micro)n Technology, Inc.
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