PATENT CLAIM ANALYSIS

Application Number: 16070776
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-01
Patent Classification: ["363", "017000"]

Abstract:
A direct filtering type switching power supply is provided, for an occasion including pulsating direct current, including a filter circuit, a main power stage and an indicating circuit. A direct current input is connected to the filter circuit through the indicating circuit. The filter circuit and the main power stage are connected in parallel. The indicating circuit is formed by connecting a light emitting unit with an inductor in parallel, and make sure that the direction of the direct current input passing through the inductor is opposite to the conducting direction of the light emitting unit. The filter circuit at least includes an electrolytic capacitor. When the electrolytic capacitor is normal, an excitation current of a switching transistor in the main power stage basically does not appear in the inductor, and an LED in the light emitting unit does not emit light. When the Equivalent Series Resistance of the electrolytic capacitor rises greatly, the excitation current of the switching transistor appears in the inductor. Furthermore, when the switching transistor is switched off, the excitation current flowing through the inductor, which cannot be changed abruptly, freewheels through the LED, and drives the LED to emit light, so as to notify a user or a circuit that the electrolytic capacitor may have the risk of complete failure. The LED may also be a light emitter of a photocoupler. The switching power supply is low in cost, has unchanged efficiency and is easy to implement.

Claim (Index 4):
The direct filtering type switching power supply according to  claim 1 , wherein the light emitting unit is a light emitting diode.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 95.0
- Lexical Diversity: 2.61765
- Patent Class: 363.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['16070527', '16313011', '16034351', '10952425', '13027461']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8400116126521067
- 35 USC 102 Novelty (BERT): 0.5623465830699762
- Combined Prediction Score: 0.8122451096938936
- Mean Citation Score: 303.2765060000001
- Max Citation Score: 445.393
- Similarity Product: 398.518943689108

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