Pulse Generation By Bipolar Transistors TRIZ Cases
- Bias-Stabilized Relaxation Oscillator With Low Frequency Spread
Bias voltages from PMOS and NMOS stages replace the current source, cutting area and power while reducing oscillator frequency spread.
- Oscillator Reference-Signal Jittering for EMI Reduction
By varying the oscillator reference signal, this case cuts switching-power EMI without the large chip area required by prior jittering circuits.
- Switchable Oscillator Circuit for Low-Power Clock Generation
A frequency-selectable oscillator and divider keep sub-clock output aligned while cutting power dissipation in low-speed operation.
- Compensated Oscillator Circuit for Temperature-Stable Clock Frequency
Constant-width compensation pulses adjust capacitor charging duty cycle to offset temperature and process drift in clock oscillators.
- Configurable Spread Spectrum Oscillator for Low-Complexity EMI Reduction
A dual high- and low-frequency oscillator cuts EMI with simpler resistive coupling and flexible frequency and duty cycle tuning.
- Balanced-Output Single-Stage Oscillator Without Inductors
Cross-coupled self-feedback amplifiers create the full phase shift for high-frequency oscillation without inductors or multi-stage delay cells.
- RC Oscillator Circuit With Switched Capacitance for Frequency Stability
Switched capacitors and temperature-compensated resistors keep RC oscillator frequency stable against voltage drift and temperature change.
- Compensated Oscillator Circuit for Stable Frequency Across Temperature
Uses opposing resistor temperature coefficients and inverter thresholds to keep oscillator frequency stable under temperature and supply changes.
- Oscillator Frequency Control Using Lookup-Based Compensation
Lookup-based control codes stabilize oscillator frequency across temperature and voltage changes without complex compensation circuits.
- Current-Controlled Hysteretic Oscillator for Stable Wideband Locking
Controlled hysteresis in differential pairs stabilizes wide-range relaxation oscillations and improves phase and frequency error immunity.
- RC Oscillator Current Mirror Compensation for Stable Frequency
Active current mirror division and feedback switching stabilize RC oscillator frequency despite transistor mismatch and small capacitor limits.
- Oscillator Pull-Up Circuit for Low-Voltage Clock Integrity
A pull-up circuit makes one output rise before the other falls, preserving normal clock amplitude, period, and phase at low supply voltage.
- Oscillation Circuit With Supply-Compensated Clock Frequency Control
Adjusting current and reference voltage gap with supply changes keeps capacitor timing and clock frequency stable.
- Single-Pin RC Oscillator Feedback for Accurate Clock Frequency
By measuring RC charge timing between voltage thresholds, this circuit corrects clock frequency drift while keeping a single-pin interface.
- Digital Controlled Oscillator Feedback for Stable RC Clock Accuracy
Feedback from successive divided clock periods lets an integrated RC oscillator correct drift and maintain crystal-like frequency stability.
- On-Chip Clock Generator With PVT-Compensated Current Source
PTAT and current mirror compensation stabilize an on-chip clock across process, voltage, and temperature corners without trim-by-die testing.
- Matched-Transistor Oscillator Circuit for Temperature-Stable Clocks
Matched transistors and complementary-temperature resistors keep oscillator clock frequency stable across temperature changes, even at low voltage.
- Current-Mirror Oscillator for Stable CMOS Frequency Output
A current-mirror delay circuit stabilizes CMOS oscillator frequency against temperature and supply variation while cutting power and layout area.
- Micropower RC Oscillator With Current-Mirrored Inverter Drive
A current-mirrored inverter supply and temperature-compensated RC network cut oscillator current draw while keeping frequency stable.
- Magnetic Drive for Mechanical Oscillators at Extreme Temperatures
An AC-driven coil and permanent magnet replace fragile piezo drivers, enabling mechanical oscillators to run reliably across extreme temperatures.
- Compensated Delay Circuit for Voltage and Temperature Stability
Constant-current compensation keeps IC delay timing stable despite supply voltage and temperature shifts, improving signal synchronization.
- Temperature-Compensated Oscillation Circuit for Stable Frequency
Delay circuits and a temperature-dependent current source offset NMOS threshold drift to keep oscillator frequency stable.
- Oscillator Circuit with Capacitor Reinitialization for Stable Frequency
By reinitializing the capacitor to the supply voltage before each discharge, this oscillator circuit keeps frequency more stable under Vdd variation.
- Ultra low power CMOS oscillator for low frequency clock generation
MOS thyristor inverters replace bias-current comparators in a CMOS oscillator, cutting power while stabilizing 10-50 kHz clocks.
- Adjustable Oscillator Biasing for Stable Clock Frequency
Dynamic bias control and clock-source selection help self-oscillating circuits maintain stable frequency under voltage, process, and temperature shifts.
- Voltage-Tracking Timer Circuit for Stable Low-Voltage Delay
A voltage-dependent current source and reference voltage keep timer and oscillator delay stable even when the power supply drops.