| 摘要 |
PURPOSE:To always control the calorific volume within a satellite of a power supply device at a constant level and to prevent the fluctuation of voltage due to temperatures, by dissipating the heat of the surplus component of the output of a solar battery and the load fluctuation component of a device independently of each other by means of the shunt resistances of two shunt regulators. CONSTITUTION:The shunt resistances 7b1-7b3 of the 2nd shunt regulaor 10 are broken when each device is connected to a power supply. The surplus component of the electric power generated from a solar battery 1 is totally dissipated to the outside directly by a shunt resistance 7a of the 1st shunt regulator 9. Now if a device 8a, for example, is turned off, the resistance 7b1 is connected to a transistor (TR) 6b. Then the TR6b conducts since the set voltage of the regulator 10 is set lower than that of the regulator 9. A current equal to the current consumed by the device 8a flows to the resistance 7b1, and the calorific value has no change at a place near the device 8a. Thus, no temperature, change is produced. |
