Title:
NOISE AND SPARKING PREVENTION FOR THYRISTOR CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2018/180186
Kind Code:
A1
Abstract:
A power switch becomes worn out due to sparking in a circuit in which energization is repeated multiple times during a short period such as when heating an impulse heat sealer. Moreover, trigger noise is generated when using a thyristor for a timer circuit. The present invention resolves the above problems with fewer components and reduced costs. A capacitor of an appropriate value is placed before a trigger circuit and a timer circuit that are applied to the gate of a thyristor. Consequently, sparking of a switch is not generated or is sharply reduced. Furthermore, noise is minimized because a gate trigger of zero volts is applied.
Inventors:
SAKAMOTO KAZUKO (JP)
SAKAMOTO ATSUNOBU (JP)
SAKAMOTO ATSUNOBU (JP)
Application Number:
PCT/JP2018/007910
Publication Date:
October 04, 2018
Filing Date:
March 01, 2018
Export Citation:
Assignee:
SAKAMOTO KAZUKO (JP)
SAKAMOTO ATSUNOBU (JP)
SAKAMOTO ATSUNOBU (JP)
International Classes:
B65B51/10; B05C5/00; B65B51/02; H03K17/725; H05K3/34
Foreign References:
| JPS60152129U | 1985-10-09 | |||
| JPH09286412A | 1997-11-04 |
Attorney, Agent or Firm:
SAKAMOTO Atsunobu (JP)
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