| 20110273238 | OVEN CONTROLLED CRYSTAL OSCILLATOR - An oven controlled crystal oscillator includes a thermostatic bath, an inner circuit board, an outer circuit board, a heating element, and a temperature sensor. The inner circuit board is positioned inside the thermostatic bath and electrically connected with the outer circuit board via a pin, and the inner circuit board has a crystal oscillation circuit. The outer circuit board has a temperature control circuit and a power supply circuit electrically connecting with the temperature control circuit. The heating element and the temperature sensor electrically connect with the outer circuit board. A though slot is formed through the outer circuit board, and the thermostatic bath is inserted into the though slot. By inserting the thermostatic bath into the though slot of the outer circuit board, the height and the weight of the oven controlled crystal oscillator are reduced, the electric connection performance is enhanced, and thus the stability of the output frequency of the oven controlled crystal oscillator is improved. | 11-10-2011 |
