Apparatus Without Intermediate Ac Conversion TRIZ Cases
- Multi-phase Control Circuit Temperature Balance Method
A multi-phase control circuit adjusts pulse width modulation signals to balance temperatures across power stages.
- DC-DC Converter Overvoltage Protection via Flying Capacitor Sensing
A DC-DC converter controller infers switching element voltages from flying and output capacitor sensors to manage electrical stress.
- Negative Charge Pump Regulation Circuit Topology
A segmented sampling path in a negative charge pump regulation circuit reduces ripple by switching between resistor and capacitor modes.
- Charge Pump Control Circuit Without Oscillator
A charge pump control circuit uses a logic combination circuit to generate clock pulse signals for the charge pump.
- Charge Pump Circuit With Temperature-Dependent Bias Current
A charge pump circuit uses a temperature-dependent bias current to control transistor sizing and reduce electromagnetic emissions.
- Buffer Circuit Dynamic Biasing for Transistor Over-Stress Protection
Dynamic biasing prevents electrical over-stress damage in buffer circuits without requiring expensive high-voltage components.
- Cross-Coupled Charge Pump for 1/3 and 2/3 Ratios
Cross-coupling capacitors merge switching networks to reduce component count while maintaining high efficiency at 1/3 and 2/3 ratios.
- Charge Pump Circuit Split-Rail Voltage Adaptation
A charge pump circuit generates split-rail supply voltages by transferring charge packets between flying and reservoir capacitors.
- Frequency Hopping Charge Pump Settling Time
Variable clock frequencies reduce charge pump settling time while lowering power consumption and spurious emissions.
- Magnetic Bearing Power Supply Voltage Stabilization
A DC-DC power supply converts high voltage bus current to stable low voltage for magnetic bearing controllers.
- Two-Stage Charge Pump for Mobile Display Driver ICs
A two-stage charge pump boosts voltage using an intermediate middle voltage to enhance current driving capability in mobile display drivers.
- Inductor Current Sensing via Switching Node Voltage
Compensation sense circuit generates a pulse signal from the switching node voltage to regulate inductor current without external components.
- Switched Capacitor Power Supply for Compact IC Integration
Segmenting power conversion into multiple capacitor stages eliminates bulky magnetic inductors, allowing co-packaging with low voltage digital ICs.
- Charge-Pump Circuit Alternating Clock and Sensing Signals for TDDI
Alternating clock and sensing signals in a segmented charge-pump circuit generates voltage spans over 40 volts, enabling efficient TDDI driver integration.
- Reverse X2 Charge Pump Soft Start Circuit
A soft start mechanism gradually ramps the middle input voltage in a reverse multiply-by-two charge pump circuit.
- Voltage Regulation Unit with Zener Diode and Charge Pump Control
A voltage regulation unit uses a current mapping circuit to control a Zener diode for stable driving voltage output.
- Voltage Converter Power Stage With Series Capacitor Bias Switch
A voltage converter power stage uses a series capacitor and bias switch to maintain low voltage across high-side switches.
- Variable-Impedance Switch Control for Inductor Current Measurement
A switch control circuit adjusts variable impedance to detect inductor current levels within a switching DC-to-DC converter topology.
- Switchable Charge Pump Network for RF Transmit-Receive Systems
A switchable charge pump network enables dynamic mode switching in radio frequency circuits.
- Charge Pump Voltage Conversion Circuit for Miniaturization
A charge pump circuit converts supply voltage amplitude to reduce transistor on-resistance.
- Voltage Boosting Power Supply Circuit for Stable Output
A voltage boosting power supply circuit uses an addition comparison circuit to sum capacitor and supply voltages for stable output.
- Step-down Controller Snubber Network for EMI Reduction
A snubber network with auxiliary inductance and diodes redirects initial current flow, reducing power loss and voltage peaks caused by parasitic inductance.
- Adaptive Reference Voltage Generator Using Self-Calibrating Transistors
A reference voltage generator adjusts output using cascaded PMOS and NMOS gate-source voltages.