Texas Instruments Corporation

Zhaofu Zhou

Ian Lloyd Bower

Hua Tang

Teng Feng

Shanguang Xu

Yunsheng Qu

A heater is provided, including: a heater body and a driving controller; the heater body includes: a heating stick and a temperature probe; the driving controller includes a controller housing and a control circuit board; the control circuit board includes: an input protection module; a rectification and filtering module connected to the input protection module; a power conversion module connected to the rectification and filtering module; a 5V output module connected to the power conversion module; a main control module connected to the 5V output module; a touch function module, an on-off control module, a temperature detection module, a temperature display module, an indicator light module, and a buzzer module which are respectively connected to the main control module.

Heater

Immersion water heater

In at least one example, an apparatus includes a current sense circuit, an imbalance detector, and a current balancer. The current sense circuit including a first phase input, a second phase input, a first sense output, and a second sense output. The imbalance detector having a detector output, a first detector input, and second detector input. The first detector input is coupled to the first sense output and the second detector input is coupled to the second sense output. The current balancer having a balancer input and a balancer output. The balancer input is coupled to the detector output.

Interleaved phase current balancing

An example apparatus includes: a first and second capacitor; a first and second inductor; a first switch having a first and second terminal, the first terminal coupled to the first capacitor, and the second terminal coupled to the first and second inductor; a second switch having a third and fourth terminal, the third terminal coupled to the second terminal, the fourth terminal coupled to the second capacitor; a third switch having a fifth and sixth terminal, the fifth terminal coupled to the first terminal, the sixth terminal coupled to the second inductor; and a diode having a seventh and eighth terminal, the seventh terminal coupled to the sixth terminal, the eighth terminal coupled to the fourth terminal.

Methods and apparatus to reduce reverse recovery during the operation of an inverting buck boost converter

A DC-DC converter includes a ramp generator, a threshold voltage circuit, and a control circuit. The ramp generator is configured to generate a voltage ramp. The threshold voltage circuit is configured to generate a threshold voltage. The control circuit is coupled to the ramp generator and the threshold voltage circuit. The control circuit includes a digital pulse width modulator (DPWM) circuit and a loop compensation circuit coupled to the DPWM circuit. The DPWM circuit is configured to generate a power stage switch control signal responsive to a loop compensation value. The loop compensation circuit is coupled to the DPWM circuit. The loop compensation circuit is configured to calculate the loop compensation value responsive to the voltage ramp exceeding the threshold voltage.

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Shenzhen, China

Zhaofu Zhou