Electronic Switching TRIZ Cases

Back-to-back normally conducting JFETs enable fast fault current interruption without arcs, lowering resistance, wear, and power-loss risk.

A single substrate integrates rotation, axial movement, and button sensing to cut switch module space, cost, and assembly complexity.

A Zener diode preregulator stabilizes SPI logic thresholds during negative power transients while reducing current draw and shutdown risk.

A voltage clamp circuit stabilizes cascode midpoint drift under static DC blocking, preventing false turn-on and transistor damage.

Pulse-based terminal sensing identifies capacitive or inductive loads before closing, helping avoid surge and inrush damage.

Integrated touch patterns and mode-based logic combine vehicle functions in one slim controller while reducing touch errors and part cost.

Adaptive capacitance thresholds track environmental drift in steering wheel grip sensing, improving detection accuracy without extra sensors.

A series airgap with commutation switching gives DC breakers fail-safe current interruption and isolation when power electronics fail.

Dynamic gate control uses pad fault detection and analog MUX switching to keep stacked low-voltage transistors within SOA limits.

Software-defined capacitive touch fields let one illuminated wall control element adapt to changing building installations without hardware replacement.

Determined start-up voltages and ESD paths protect thin gate oxides while speeding IC decoupling capacitor initialization.

An isolated driving unit and TVS diode clamp IGBT overvoltage by inducing gate current that slows turn-off and limits voltage spikes.

Embedded sensing in each keyswitch captures plunger travel without complex PCB infrastructure, enabling modular analog keyboards with faster scanning.

An RC-interruption switch extends clamp timing during external terminal ESD events, protecting internal rails with less circuit area.

A bendable optical path tracks disconnecting switch movement to deliver precise online state monitoring in heat, weather, and magnetic fields.

RC-filtered threshold detection improves zero-voltage timing in resonant pole inverters, cutting noise-triggered errors and turn-on losses.

Independent dual-gate control switches RC-IGBT modes by current direction to cut switching loss and suppress reverse recovery current.

A transformer chip with spiral coils isolates primary and secondary circuits, cutting process complexity and manufacturing cost.

A dual-voltage gate driver switches from VCC to buffered VREF to hold safe Vgs and rapidly adjust on-resistance during faults.

Gate-voltage sensing after trigger pulses detects untriggered parallel thyristors quickly, avoiding delayed thermal feedback and current sensors.

When the primary CAN bus fails, multiplex messages are rerouted over the DC power line using signal conversion and the same frame format.

Low-side current sensing and charge-based signal accumulation cut feedback delay and noise, keeping switching supply control stable at short pulse widths.

A temperature-variable reference based on switching-element temperature keeps overcurrent protection accurate when the control circuit runs hotter or cooler.

Temperature-based delay adjustment in parallel hybrid switches cuts switching losses and helps prevent SiC device overheating.

Adjustable blanking, threshold, and noise-removal timing suppress DESAT ringing errors while keeping short-circuit protection fast.

Voltage comparison across series semiconductor switches exposes cutoff abnormalities before overvoltage disrupts stable power supply.

Matched transistors and current mirrors stabilize leakage-based startup current across process, voltage, and temperature variation while saving area.

A complementary two-switch PCM circuit routes the off path to ground to cut parasitic coupling and improve RF signal-to-noise ratio.

Discrete PWM pulse control discharges a vehicle intermediate circuit faster while limiting resistor heat and avoiding microprocessor failure risks.

Pressure sensing, capacitive touch, and haptic feedback let one side button replace navigation bars for easier one-handed smartphone control.

A GaN HEMT bias circuit creates a virtual source to cut on-state resistance while preserving bidirectional voltage blocking during fast dV/dt transitions.

A delayed switching circuit applies pickup voltage only for contact closure, then lowers coil voltage to cut relay power use.

Split JFET cells with different gate resistances curb switching overshoot and ringing while preserving fast turn-on and low loss.

A four-branch grounded-switch layout simplifies DPDT RF gating, cutting structure complexity, cost, and volume for compact dual-channel use.

Variable touch thresholds based on detected finger contact area improve switch accuracy and operation feel across different finger sizes.

A gate-off circuit ties gate and source during signal-pad ESD events, steering harmful current to a clamping circuit and protecting semiconductor elements.

Quadrature hybrid couplers and shared local oscillators enable dual-band, dual-polarized reception with lower converter count, energy use, and complexity.

Low-voltage slew control shapes half-bridge gate switching to cut EMI, reduce high-voltage devices, and recycle gate-capacitor charge.

Dual voltage-drop measurements identify active-diode MOSFET faults in parallel power supplies and avoid false defect signals.