Pulse Generator TRIZ Cases
- Programmable Ramp Signal Circuit for Accurate ADC Linearity
A programmable current source and capacitor generate linear bidirectional ramp signals, reducing ADC circuit complexity and inaccuracy.
- Four-Pin MOSFET Load Switch With Programmable Ramp Control
Voltage-controlled current sources and inline discharge resistors keep a MOSFET load switch at four pins while adding ramp, discharge, and protection features.
- Optical Receiver Photocurrent Sensing With Diode-Clamped Headroom
A diode-clamped sensing path and current mirror let optical receivers detect low photocurrent accurately without violating photodiode headroom.
- Triangular Waveform Feedback Circuit for Low Audio Band Noise
An active feedback network adds DC balance to a triangular waveform generator, cutting audio band noise without sacrificing linearity.
- Dual Triangular Sawtooth Oscillator for Fast Edges and Low Ground Bounce
Two 180° out-of-phase triangular generators are switched to deliver a fast falling edge, low current draw, and reduced ground bounce.
- Triangular Waveform Generator With Feedback for Low Audio Noise
An active integrator with a frequency-shaped feedback network cuts audio-band noise in triangular waveforms while preserving linearity and DC balance.
- Phase-Shift PWM Circuit for Stable Multi-String LED Dimming
Phase-shifted PWM signals stagger LED string activation to prevent voltage drops and keep multi-string dimming uniform and stable.
- Triangular Waveform Generator Feedback for Low Audio Band Noise
An active feedback network suppresses oscillator ramp audio noise while preserving DC balance and triangular waveform linearity in Class D amplifiers.
- Clock-Synchronized Triangular Waveform Calibration for Class-D PWM
A calibrated free-running triangular waveform generator locks to an external clock to reduce drift, discontinuities, and PWM linearity loss.
- Phase-Shifted Triangle Wave Circuit for Accurate High-Frequency PWM
Phase-shifted pulse control drives capacitor charge and discharge to create symmetric high-frequency triangle waves for accurate multi-supply PWM.
- Ramp Generator Current Trimming for Stable Slope Control
A trimming circuit measures ramp timing against a reference and adjusts charge or discharge current to keep the slope stable over process, voltage, aging, and temperature.
- Adaptive Slope Generator for Stable Current-Mode DC-DC Control
A variable sawtooth compensation slope tracks output voltage and switching frequency to stabilize current-mode DC-DC converters above 50% duty cycle.
- Gate Drive Edge-Rate Control for Fast Switching With Lower EMI
A current-mirror gate drive shapes FET switching edges to cut EMI and distortion while keeping low delay and dead time.
- Variable-Frequency Triangular Wave Circuit for Low-EMI Class-D Amplifiers
A variable-frequency triangular wave spreads fixed harmonic spikes in class-D amplifiers, reducing electromagnetic interference with added control.
- Unit-Element Ramp Generator for Linear ADC Conversion
Rotating switched-capacitor unit elements generate accelerated ADC ramps with accurate step sizes while minimizing charge injection and gain errors.
- Multimode SMPS Control With High-Resolution PWM and Slope Generation
A selectable control path and digital ramp circuit let an SMPS switch modes while keeping high-resolution PWM and slope signals without extra PLLs.
- Triangle Wave Generator Feedback for Low Audio Band Noise
An active feedback network cuts audio band noise in a triangle wave generator while preserving DC balance and waveform linearity for Class D amplifiers.
- Triangular Wave Generator Using RC Feedback to Cut Circuit Complexity
An RC feedback circuit replaces comparators and multiple control signals to generate triangular waves with lower chip size and complexity.
- Through-Zero PWM With Period-Average-Zero Waveform Generation
A linearly varying control signal and subtraction step remove the PWM d.c. term, reducing magnetic saturation and modulation products.
- Dual-Oscillator Sawtooth Circuit for Fast Edges and Low Ground Bounce
Two out-of-phase triangular oscillators are alternately switched to create a high-frequency sawtooth with a fast falling edge, low current use, and reduced ground bounce.
- Triangular Waveform Integrator Feedback for Low Audio Band Noise
An active integrator with frequency-shaped feedback lowers triangular ramp audio noise while preserving DC balance and waveform linearity.
- Digital Clock Frequency Modulation Without External Waveform Parts
A divider, counter, and DAC generate the triangular modulation signal internally, enabling integrated clock spreading to cut EMI and cost.
- Feedback-Controlled Sawtooth Generator for Precise Amplitude
A comparator-driven feedback current loop stabilizes sawtooth amplitude against resistor and capacitor process variation without trimming.
- Controlled-Endpoint Sawtooth Oscillator Using Capacitor Charge Sharing
Charge sharing between timing and switched capacitors controls suspended sawtooth endpoints, reducing frequency error and supply rail glitching.
- Triangular Wave Circuit Correction for Distortion-Free FM-CW Radar
By matching the DC interval to a reference voltage, this circuit corrects triangular wave distortion from power and temperature drift in FM-CW radar.