PATENT CLAIM ANALYSIS

Application Number: 16032323
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2020-01
Patent Classification: ["363", "021010"]

Abstract:
Peak primary current control on the secondary side. In a power converter having a primary side and a secondary side separated by a main transformer, example methods include: driving primary current through a primary winding of the main transformer; creating, on the secondary side of the main transformer, a signal indicative of current through the primary winding of the main transformer; and ceasing the driving of primary current through the primary winding when the signal indicative of primary current reaches a predetermined value.

Claim (Index 19):
A power converter comprising:\n a primary side comprising:\n a primary winding of a main transformer; \n a primary field effect transistor (FET) coupled to the primary winding, the primary FET having a gate; \n a primary-side controller defining a pulse input and a gate output, the gate output coupled to the gate of the FET, the primary-side controller configured to drive the gate output responsive to a PWM signal received on the pulse input; \n a secondary side comprising:\n a secondary winding of the main transformer; \n a secondary FET coupled to the secondary winding, and the secondary FET defining a gate; \n a secondary-side controller defining a gate terminal, a winding sense terminal, an output voltage terminal, a primary pulse-width modulation (PWM) terminal, and a capacitor terminal, the gate terminal coupled to the gate of the secondary FET, the winding sense terminal coupled to a node between the secondary winding and the secondary FET; \n a capacitor coupled between the capacitor terminal of the secondary-side controller and ground; \n an isolation circuit that provides galvanic isolation, the isolation circuit coupled between the primary PWM terminal of the secondary-side controller and the pulse input of the primary-side controller; wherein the secondary-side controller is configured to, during each switching cycle of the primary FET:\n command the primary-side controller to make the primary FET conductive to induce a primary current through the primary winding, the command by way of the primary PWM terminal through the isolation circuit; \n create a signal proportional to primary current; and \n command the primary-side controller to make the primary FET non-conductive when the signal proportional to primary current reaches a predetermined value, the command by way of the primary PWM terminal through the isolation circuit.

Metadata:
- Claim Count in Document: 29.0
- Percentile: 95.0
- Lexical Diversity: 2.45946
- Patent Class: 363.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15964620', '16010578', '10629103', '10465467', '14973456']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8022978369666199
- 35 USC 102 Novelty (BERT): 0.4646110322422524
- Combined Prediction Score: 0.7685291564941832
- Mean Citation Score: 177.197698
- Max Citation Score: 210.68578
- Similarity Product: 185.3102810246849

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