PATENT CLAIM ANALYSIS

Application Number: 15892724
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-10
Patent Classification: ["363", "021030"]

Abstract:
A flyback power converter circuit includes: a transformer including a primary side winding coupled to an input power and a secondary side winding coupled to an output node, wherein the input power includes an input voltage; a primary side switch coupled to the primary side winding for controlling the input power to generate an output power on the output node through the secondary side winding, wherein the output power includes an output voltage; a clamping circuit including an auxiliary switch and an auxiliary capacitor connected in series to form an auxiliary branch which is connected with the primary side winding in parallel; and a conversion control circuit for adjusting an ON time of the auxiliary switch according to at least one of a current related signal, the input voltage, and the output voltage, such that the primary side switch is zero voltage switching when turning ON.

Claim (Index 1):
A flyback power converter circuit, comprising:\n a transformer, which includes a primary side winding coupled to an input power and a secondary side winding coupled to an output node, wherein the input power includes an input voltage and an input current; a primary side switch, coupled to the primary side winding, and configured to operably control the primary side winding to convert the input power such that the secondary side winding generates an output power on the output node, wherein the output power includes an output voltage and an output current; a clamping circuit, including:\n an auxiliary switch; and \n an auxiliary capacitor, coupled to the auxiliary switch in series to form an auxiliary branch which is coupled with the primary side winding in parallel; and \n a conversion control circuit, configured to operably generate a primary side switch control signal and an auxiliary switch control signal to control the primary side switch and the auxiliary switch respectively to convert the input power to the output power, wherein the auxiliary switch and the primary side switch do not switch complementarily to each other, the conversion control circuit including:\n an auxiliary switch control circuit, configured to operably control the auxiliary switch according to at least one of the followings: (1) a current related signal, (2) the input voltage, and/or (3) the output voltage, such that a voltage difference between a current inflow terminal and a current outflow terminal of the primary side switch is substantially zero when the primary side switch turns ON, whereby zero voltage switching is achieved, wherein the current related signal relates to at least one of the followings: (1) the output current, (2) a conduction current of the primary side switch, and/or (3) a conduction current of the primary side winding; and \n a signal sensing circuit, configured to operably sense the current related signal, the input voltage, and/or the output voltage.

Metadata:
- Claim Count in Document: 12.0
- Percentile: 88.0
- Lexical Diversity: 2.4375
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15878483', '15147182', '14697438', '15809595', '15099876']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8353400083028854
- 35 USC 102 Novelty (BERT): 0.5496086334695692
- Combined Prediction Score: 0.8067668708195538
- Mean Citation Score: 332.4265640000001
- Max Citation Score: 414.51736
- Similarity Product: 409.64234084686274

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