Constant-temperature type crystal oscillator

Constant-temperature type crystal oscillator

  • CN 102,035,468 B
  • Filed: 09/27/2010
  • Issued: 02/10/2016
  • Est. Priority Date: 10/01/2009
  • Status: Active Grant
First Claim
Patent Images

1. a constant-temperature type crystal oscillator, comprising:

  • Heat-conducting plate, is installed on the interarea of circuit substrate;

    Quartz crystal, is equipped on the opposing face in the face of the described circuit substrate that described heat-conducting plate is installed;

    Temperature sensor, is equipped on described circuit substrate, detects and form the vibration element of oscillating circuit and the temperature of described quartz crystal together with described quartz crystal;

    Heating resistor, is equipped on described circuit substrate, heats described quartz crystal according to the temperature that described temperature sensor detects;

    AndTemperature control component, forms temperature-control circuit together with described temperature sensor and described heating resistor, and at least containing the power transistor being equipped on described circuit substrate;

    The feature of described constant-temperature type crystal oscillator is,At the peripheral part of described heat-conducting plate, in the point-symmetric position centered by described quartz crystal, at least form more than 2 in the coconnected opening portion of the thickness direction of described heat-conducting plate,A described power transistor and described heating resistor is configured respectively in each described opening portion.

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