PATENT CLAIM ANALYSIS

Application Number: 16118801
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-03
Patent Classification: ["363", "021120"]

Abstract:
A semiconductor device for power supply control generating and outputting a driving pulse for performing control to turn on/off a switching element by inputting voltage in proportion to current in the primary-side winding wire and an output voltage detection signal from a secondary side, the device including: a high-voltage input start terminal to which alternating-current voltage of AC input or rectified voltage is input; voltage comparison circuits to which voltage obtained by dividing voltage input to the high-voltage input start terminal is input and which compare the input voltage with any of reference voltages; a timer circuit which starts to measure a predetermined time at a timing of rising and/or falling of output of the voltage comparison circuits; and a discharging unit between the high-voltage input start terminal and a ground point, wherein the discharging unit is made conductive when the predetermined time is measured.

Claim (Index 7):
A discharging method for an X capacitor in a power supply device that includes: a transformer for voltage conversion having a primary side to which alternating voltage of AC input or voltage rectified in a diode bridge is input; a switching element which is connected to a primary-side winding wire of the transformer for voltage conversion and which is for intermittently making current flow in the primary-side winding wire of the transformer; a signal generation circuit which generates a signal for performing control to turn on or off the switching element; an X capacitor which is connected between input terminals of the AC input; a discharging unit which is connected via a rectifying element between a terminal of the X capacitor and a ground point; and a rectifying circuit which is provided on a secondary side of the transformer for voltage conversion, the discharging method comprising:\n a first step of comparing voltage obtained by dividing voltage supplied via the rectifying element with a predetermined reference voltage; a second step of starting time measuring operation in response to detection that the voltage obtained by voltage division becomes lower than the predetermined reference voltage; and a third step of making discharging current flow via the rectifying element by making the discharging unit conductive when a predetermined time is measured by the second step.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 96.0
- Lexical Diversity: 1.85366
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15552653', '15544293', '13372334', '15552080', '15553361']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8202288080608213
- 35 USC 102 Novelty (BERT): 0.5115686839183397
- Combined Prediction Score: 0.7893627956465732
- Mean Citation Score: 259.265458
- Max Citation Score: 325.23544
- Similarity Product: 276.515848744545

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test