Logic Circuits Coupling/Interface With Bidirectional Operation TRIZ Cases
- Bidirectional MCU Port Control for Hardwired Contactors
A single bidirectional MCU port with arbitration enables hardwired contactor control and state feedback without extra BMS ports.
- Bi-Directional MCU Interface for Single-Port Contactor Control
An arbitrated bi-directional MCU port enables hardwired contactor control and state feedback without consuming multiple BMS ports.
- Bi-Directional Level Shift Circuit for Stable Single-Wire Signals
A two-transistor level shifter maintains single-wire signal levels in both directions, supporting capacitive loads without extra power circuitry.
- SoC Power-Up Sequencing With Domain Isolation Signals
Isolation signals and glitch-filtered voltage detection coordinate SoC power domains during startup to avoid contention currents and noise coupling.
- Timing Margin Monitor Circuit for Supply Voltage Attack Detection
A self-aligning timing margin monitor uses tunable delay and time-to-digital conversion to detect supply voltage tampering before timing failure.
- I3C Pull-Up Current Control in FPGA Communication Interfaces
Dynamic on-chip pull-up current control enables FPGA I3C links without external pull-up logic, saving board area and IO resources.
- Self-Aligning Timing Margin Monitor for Supply Voltage Detection
A self-aligning digital timing margin monitor tracks supply voltage droop and overshoot every clock cycle without fuse-heavy calibration.
- Ultrasonic Surgical Instrument Bus Interface for Noise-Immune Data Links
A mediator converts single-wire signals to a differential bus, improving noise immunity and data reliability in ultrasonic surgical instruments.
- Single-Wire Surgical Bus Interface Using Differential Signaling
Conversion circuitry bridges single-wire surgical nodes to a differential bus, improving noise tolerance and data fidelity between instrument components.
- Single-Wire Surgical Instrument Bus Bridging for Reliable Data
Logic buffers and differential transceivers bridge single-wire nodes to a differential bus, improving data fidelity in ultrasonic surgical instruments.
- Optoelectric Galvanic Isolation Circuit for Latch-Free I²C Buses
Non-inverting buffers and a metal semiconductor diode provide galvanic isolation for I²C links while preventing latching without costly bidirectional buffers.
- Wireless Headphone Charging Base UART Link Over Three Contacts
Transistor-bridged RXD and TXD lines enable reliable two-way UART communication between a wireless headphone and charging base over three contacts.
- Wireless Headphone Charging Link for Two-Way Base Communication
A transistor-based charging link lets the headphone and base exchange data in both directions without adding contacts to the three-wire design.
- Optoelectric Isolation Circuit for Latch-Free I2C Bus Links
Separate optical paths with non-inverting buffers and a metal semiconductor diode enable galvanic isolation for I2C without costly bidirectional buffers.
- Voltage-Tolerant Level Shifter for Fast Reliable Domain Conversion
RC-assisted control of latch and driver paths cuts voltage stress and signal fighting, improving speed and reliability across voltage domains.
- Bidirectional Voltage Translation With Dynamic One-Shot Pulse Width
Dynamic one-shot pulse control matches signal duration to prevent bidirectional voltage translator errors across low- and high-frequency signals.
- SoC Power-Up Sequencing With Isolation Signals Across Power Domains
Voltage detection and glitch filtering coordinate SoC power domains during startup to prevent contention currents, noise coupling, and unstable operation.
- PCB Pull Resistor Reconfiguration During Electronic Module Restart
Stored PCB adjustment data restores pull resistor settings during module restart, preventing unsafe default states without redundant hardware.
- CAN Transceiver Ground Pin Layout for High-Frequency EMI Reduction
Separate VCC and VIO ground paths break parasitic resonance in CAN transceivers, cutting 100-300 MHz EMI without common-mode chokes.
- Output Circuit Node Control for Analog-Digital Signal Isolation
Node control tied to external terminal voltage suppresses leak currents and protects analog waveform integrity on shared analog-digital pins.
- Dual-Function IC Pin for Current Limiting and Fault Output
A single IC pin uses an application resistor to set current limit at startup, then acts as an open-drain fault output in low pin-count switches.
- Single-Wire Optical Isolation Circuit to Prevent Data Link Latch-Up
Two independent switching circuits and optical isolators enable bi-directional single-wire communication without latch-up from noise coupling or ground loops.
- Interface Circuit Current Sensing Signal Integrity
Segmented current measurement prevents signal drops from misinterpretation during elevated uptake.