PATENT CLAIM ANALYSIS

Application Number: 16084295
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-03
Patent Classification: ["363", "089000"]

Abstract:
A power supply device according to the present invention detects a value of an input voltage (power supply voltage) by an input side voltage detection circuit, and decreases a comparative voltage (error voltage) that is compared with an on timer signal (timer signal) for determining an on time of a switching element based on the value of the input voltage. The power supply device employs an on-time control and at the same time reduces the total harmonic distortion.

Claim (Index 6):
A power supply device including a power factor correction circuit and configured to supply power to a load, the power supply device comprising:\n an AC power supply configured to output an AC voltage between a first input terminal and a second input terminal; a rectifier circuit connected between the first input terminal and the second input terminal and configured to output, between a first power supply terminal and a second power supply terminal, a power supply voltage obtained by rectifying the AC voltage supplied from the AC power supply; a first load terminal connected to a high potential side terminal of the load and a second load terminal connected to the second power supply terminal and a low potential side terminal of the load; an input side voltage detection circuit connected between the first power supply terminal and the second power supply terminal, and configured to detect an input side detected voltage based on the power supply voltage; an output side voltage detection circuit connected between the first load terminal and the second load terminal, and configured to detect an output side detected voltage based on an output voltage between the first load terminal and the second load terminal; a primary side winding having one end that is connected to the first power supply terminal, the primary side winding being included in a transformer; a secondary side winding having one end that is connected to the second power supply terminal, the secondary side winding being included in the transformer; a main switch having one end that is connected to another end of the primary side winding and another end that is connected to the second load terminal; an error amplifier configured to output an error voltage based on a difference between the output side detected voltage and a predefined reference voltage; an adder configured to output an addition result signal based on a result of an addition of a timer signal and the input side detected voltage; an output comparator configured to output a comparison result signal based on a result of a comparison between the addition result signal and the error voltage; and a flip-flop circuit having a set terminal to which a signal from another end of the secondary side winding is inputted, a reset terminal to which the comparison result signal is inputted, and an output terminal from which a control signal for turning on or off the main switch is outputted.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 97.0
- Lexical Diversity: 1.70588
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13489167', '15552653', '15830461', '13178909', '15620042']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.821905055433744
- 35 USC 102 Novelty (BERT): 0.4656498198867791
- Combined Prediction Score: 0.7862795318790475
- Mean Citation Score: 206.123422
- Max Citation Score: 215.57953
- Similarity Product: 189.9463269852871

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test