Temperature-compensated semiconductor resistor device

• Main Authors: SAKO KAZUTOSHI, MATSUZAKI TOMOKAZU
• Format: Patent
• Language: English
• Published: 04.11.2014
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES; BASIC ELECTRONIC CIRCUITRY; CONTROL OR REGULATION THEREOF; CONTROLLING; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; PHYSICS; PULSE TECHNIQUE; REGULATING; SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES

A semiconductor device includes: a resistance R whose resistance value varies in response to a substrate temperature variation; a resistance corrector that is coupled in series with the resistance R and switches its resistance value by a preset resistance step width to suppress a resistance value variation of the resistance R; a first voltage generator for generating a first voltage that varies in response to the substrate temperature; a second voltage generator for generating second voltages Vf1 to Vfn−1 for specifying the first voltage at a point when a switching operation of the resistance value of the resistance corrector is performed; and a resistance switch unit for switching the resistance value of the resistance corrector by comparing the first voltage and the second voltages Vf1 to Vfn−1.