| 摘要 |
Intended is to provide a voltage generator having a current limiting function, which can set a current limiting value arbitrarily, which has excellent current limiting characteristics and which have a current limit of a small temperature dependency. The voltage generator comprises an operation amplifier (1), an input resistor (2), an output resistor (3), a feedback resister (4), a clamper (10) and a clamper (6). An input voltage (Vin) is applied to an input terminal (7), and a load (9) is connected with a load connecting terminal (8). The clamper (10) includes constant-voltage generating circuits (121 and 124) for generating constant voltages and for limiting the electric current to flow to the output resistor (3), and variable resistors (122 and 142) for making such constant voltages variable from the outside as are generated by the constant-voltage generating circuits (121 and 124). The constant-voltage generating circuits (121 and 124) have predetermined steep characteristics, in which the current/voltage characteristics are abruptly varied with respect to an applied voltage.
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