PATENT CLAIM ANALYSIS

Application Number: 15769316
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["363", "056010"]

Abstract:
The present disclosure provides a control apparatus of a switch-mode power supply and a switch-mode power supply. In the control apparatus of the present disclosure, a short-circuit protection module is set, and when a switching transistor of the switch-mode power supply is turned on, and the short-circuit protection module detects that a voltage across a current sensing resistor of the switch-mode power supply is less than a predetermined value within a predetermined period, that is, the current sensing resistor is short-circuited, the short-circuit protection module generates a short-circuit protection signal, and a driving controller controls the switching transistor to turn off according to the protection signal, thereby switching off the control apparatus, preventing breakdown of the switch-mode power supply, and avoiding erroneous protection.

Claim (Index 11):
A switch-mode power supply, comprising:\n a rectification module, configured to rectify an input AC voltage into a DC voltage; a transformer, comprising a primary winding, a secondary winding and a feedback winding; a rectification and filtering module, connected to the secondary winding of the transformer, and configured to rectify and filter a voltage output by the secondary winding; a switching transistor and a current sensing resistor, wherein a first output end of the switching transistor is connected to the primary winding of the transformer, a second output end of the switching transistor is connected to a first end of the current sensing resistor, and a second end of the current sensing resistor is grounded; and a control apparatus, comprising:\n a driving controller, connected to the feedback winding and an input end of the switching transistor respectively, and configured to collect an output voltage signal of the feedback winding, and to generate a driving signal for driving the switching transistor to turn on or off according to the output voltage signal; and \n a short-circuit protection module, connected to the driving controller and the first end of the current sensing resistor respectively, and configured to detect a voltage across the current sensing resistor, to generate a short-circuit protection signal when the switching transistor is turned on and the voltage across the current sensing resistor is less than a predetermined value within a predetermined period, and to output the short-circuit protection signal to the driving controller, \n wherein the driving controller is further configured to control the switching transistor to turn off according to the short-circuit protection signal.

Metadata:
- Claim Count in Document: 36.0
- Percentile: 91.0
- Lexical Diversity: 2.5
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14123038', '15667796', '15224719', '15652226', '14013028']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8286013899140368
- 35 USC 102 Novelty (BERT): 0.4795738793180826
- Combined Prediction Score: 0.7936986388544414
- Mean Citation Score: 223.753214
- Max Citation Score: 235.31123
- Similarity Product: 199.7080768008881

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

Dataset: test