| 摘要 |
PURPOSE:To enable to use the transistor of small capacity for automobile by a method wherein a constant voltage device is provided on the secondary side of a transformer, and the value of current flowing on each transistor is made smaller in the component of boosting ratio than the primary side of the transformer, thereby enabling to reduce the loss of current. CONSTITUTION:Transistors 3 and 4, on which a base current is supplied by an oscillator 5, performs an ON-OFF control over a DC power source 1 and also said transistors generate AC voltage on the secondary side of a transformer 2. This AC voltage is maintained constant by a voltage regulators 11 and 12, and supplied to load R or R'. Each voltage regulator is composed of a module consisting of a transistors 6, a resistor 7 and a diode 10, for example, and two modules are connected through the intermediaries of constant voltage diodes 8 and 8' and diodes 9 and 9'. With the constitution as above-mentioned, a current runs along the route of a transistor 6 or 6' load R diode 10 or 10', while the reference voltage is being applied to output terminals (c) and (d) by the voltage regulators 8 and 8', and the voltage on AC side can be made constant. |
