| Patent Number |
Title Of Patent |
Date Issued |
| 4623852 |
Voltage controlled oscillator having frequency independent of process parameters |
November 18, 1986 |
| A voltage controlled oscillator includes an oscillator having at least one first capacitor. The oscillator receives first and second input voltages and charges the first capacitor with a first current corresponding to the first input voltage. The oscillator oscillates at a frequency |
| 4623851 |
Voltage controlled oscillator using flip-flop controlled switching circuits |
November 18, 1986 |
| An input MOS transistor receives an input voltage and produces a current corresponding to the input voltage. A charge/discharge circuit charges a capacitor alternately in two different directions by the output current of the transistor. A select circuit alternately selects and produces o |
| 4551683 |
Switched capacitor filter circuit |
November 5, 1985 |
| Disclosed is a switched capacitor filter circuit employing the equivalent resistance of a switched capacitor circuit as the resistive element in a frequency dependent impedance converting circuit. |
| 4546327 |
Analog signal power amplifier circuit |
October 8, 1985 |
| A signal corresponding to an analog input signal is supplied to one of two input terminals of a two-input, one-output MOS differential amplifier. A reference voltage signal is supplied to the other of the two input terminals of the MOS differential amplifier. A bipolar transistor having |
| 4524329 |
Operational amplifier circuit |
June 18, 1985 |
| An operational amplifier having a differential amplifier section, a level shifting section, an output section and a bias section. In the operational amplifier, the bias section senses any changes in the power voltage and controls the level shifting of the level shifting section with the |
| 4524328 |
MOS Power amplifier circuit |
June 18, 1985 |
| A MOS power amplifier circuit comprised of a load driver including two p-channel MOSFETs connected in series, a preamplifier for amplifying an analog input signal and supplying the amplified one to the gate of one of the MOSFETs and for rendering the impedance of the two MOSFETs low; and |
