US 12,463,590 B2
Oscillator and method of manufacturing first oscillator and second oscillator
Tomohiro Uno, Chino (JP); Yasuhiro Sudo, Chino (JP); and Kentaro Seo, Shiojiri (JP)
Assigned to SEIKO EPSON CORPORATION, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Apr. 25, 2024, as Appl. No. 18/646,093.
Claims priority of application No. 2023-073118 (JP), filed on Apr. 27, 2023.
Prior Publication US 2024/0364262 A1, Oct. 31, 2024
Int. Cl. H03B 5/04 (2006.01); G06N 3/04 (2023.01); G06N 3/08 (2023.01); H03B 5/32 (2006.01); H03B 5/36 (2006.01)
CPC H03B 5/04 (2013.01) [G06N 3/04 (2013.01); G06N 3/08 (2013.01); H03B 5/32 (2013.01); H03B 5/36 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An oscillator comprising:
a resonator element;
a temperature control element that controls a temperature of the resonator element;
a microcontroller that stores a temperature control program and controls an operation of the temperature control element based on the temperature control program;
an interface circuit; and
a first temperature sensor, wherein
the temperature control program is rewritable via the interface circuit,
the microcontroller performs, based on the temperature control program, control based on a value obtained by multiplying a difference between a set temperature and a measured temperature measured by the first temperature sensor by a gain, and performs, in a start period after the temperature control element starts to operate, any one of
maximum power suppression control in which power consumption by the temperature control element is limited to a preset upper limit value or less, or
high-speed start control in which the gain is switched from a first value to a second value smaller than the first value.