Constant-temperature type crystal oscillator

Constant-temperature type crystal oscillator

  • CN 102,035,468 A
  • Filed: 09/27/2010
  • Published: 04/27/2011
  • Est. Priority Date: 10/01/2009
  • Status: Active Application
First Claim
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1. thermostatic type crystal oscillator comprises:

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

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

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

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

    AndTemperature control component constitutes temperature-control circuit with described temperature sensor and described heating resistor, and contains the power transistor that is equipped on described circuit substrate at least;

    Described thermostatic type crystal oscillator is characterised in that,At the peripheral part of described heat-conducting plate, be the point-symmetric position at center with described quartz crystal, form at least more than 2 in the coconnected opening portion of the thickness direction of described heat-conducting plate,All dispose more than one described power transistor and described heating resistor respectively with quantity in all described opening portions.

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