1460895609-c656469e-e2ac-43f7-9338-d021ae0d9a34

1. A harness for training the muscles used during hitting and swinging movements comprising:
an arm portion, the arm portion comprising one or more arm members for engaging one or both of a trainee’s arms;
a waist portion for engaging a midsection of the trainee’s body;
a pair of leg members, each leg member including a thigh band adapted for positioning around the trainee’s thigh and connected to the waist portion by a leg connecting web;
a resilient and extensible arm tether extending from each arm member to the waist portion; and
a resilient and extensible leg tether extending from the leg connecting web of each leg member for connection to a restraint structure.
2. The hitting harness of claim 1 wherein the arm portion comprises a pair of arm members, and each arm member further comprises a lower arm band adapted for positioning around the trainee’s lower arm.
3. The hitting harness of claim 1 wherein the arm portion comprises a pair of arm members, and wherein each arm member comprises an upper arm band adapted for positioning around the trainee’s upper arm, a lower arm band adapted for positioning around the trainee’s lower arm, and an arm connecting web connecting the upper arm band to the lower arm band.
4. The hitting harness of claim 3 wherein the arm tethers extend from the lower arm bands to the waist portion.
5. The hitting harness of claim 3 wherein the arm tethers extend from the upper arm bands to the waist portion.
6. The hitting harness of claim 3 wherein the arm tethers extend from the arm connecting webs to the waist portion.
7. A method of training the muscles used during hitting and swinging motions comprising:
providing a harness, the harness comprising an arm portion, the arm portion comprising one or more arm members for engaging one or both of a trainee’s arms, a waist portion for engaging a midsection of the trainee’s body, a leg portion, the leg portion comprising a pair of leg members, each leg member including a thigh band adapted for positioning around the trainee’s thigh and connected to the waist portion by a leg connecting web, a resilient and extensible arm tether extending from each arm member to the waist portion, and a resilient and extensible leg tether extending from the leg connecting web of each leg member for connection to a restraint structure;
causing the arm portion to be secured to one or both of the trainee’s arms;
causing the waist portion to be secured to the trainee’s midsection;
causing the leg portion to be secured to one or both of the trainee’s legs;
causing each leg tether to be connected to a restraint structure;
causing the trainee to engage in a desired hitting or swinging motion so that each arm tether and leg tether provides resistance to the trainee’s muscles in the sequence used to complete the desired motion.
8. The method of claim 7 wherein causing each leg tether to be connected to a restraint structure includes connecting each tether to a restraint structure on a floor.
9. The method of claim 8 wherein connecting each tether to a restraint structure on a floor includes connecting the tether to restraint structures on opposite sides of the trainee.
10. The harness of claim 1 wherein each leg tether is connected to a floor.
11. The harness of claim 10 wherein the leg tethers are connected to the floor on opposite sides of the trainee.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. A current sensing apparatus for a voltage converter apparatus comprising:
a circuit selection module coupled to a clock generator of the voltage converter apparatus and a controller for generating a circuit selection result according to a clock signal generated by the clock generator and a duty cycle signal generated by the controller;
a current sensing module coupled to the circuit selection module, an up-bridge circuit and a down-bridge circuit for measuring an up-bridge conduction current of the up-bridge circuit or a down-bridge conduction current of the down-bridge circuit according to the circuit selection result; and
a current generation module coupled to the current sensing module and a slope compensation circuit of the voltage converter apparatus for generating a sensing voltage according to a slope compensation current generated by the slope compensation circuit and the up-bridge conduction current or the down-bridge conduction current, so as to adjust the duty cycle signal of the controller;
wherein the current sensing apparatus utilizes the duty cycle signal to drive the voltage converter apparatus.
2. The current sensing apparatus of claim 1, wherein the circuit selection module further comprises a comparator for generating the circuit selection result according to a difference between the clock signal and the duty cycle signal.
3. The current sensing apparatus of claim 2, wherein a conduction period of the up-bridge circuit is smaller than a conduction period of the down-bridge circuit when the circuit selection module generates the circuit selection result.
4. The current sensing apparatus of claim 1, wherein the current sensing module further comprises an up-bridge sensing module and a down-bridge sensing module for measuring the up-bridge conduction current and the down-bridge conduction current according to the circuit selection result, so as to generate a conduction current difference.
5. The current sensing apparatus of claim 4, wherein the current sensing module further comprises:
a clock transformation module comprising:
a switch module coupled to the clock generator for determining a conduction condition of the switch module according to the clock signal, so as to output a current clock signal; and
a filter coupled to the switch module for generating an analogy duty cycle signal according to the current clock signal;

a multiplier coupled to the filter and the current sensing module for generating an adjustment current difference according to a difference between the analogy duty cycle signal and the conduction current difference;
a transformation module coupled to the multiplier for generating an adjustment voltage difference according to the adjustment current difference;
a voltage-current transformer coupled to the transformation module for generating a sensing current difference according to the adjustment voltage difference; and
an output module coupled to the voltage-current transformer for generating a sensing result according to the sensing current difference, the up-bridge conduction current and the down-bridge conduction current.
6. The current sensing apparatus of claim 5, wherein the transformation module further comprises a sensing capacitor and a switch element for generating the adjustment voltage difference according to the adjustment current difference and a reverse phase duty cycle signal related to the duty cycle signal.
7. The current sensing apparatus of claim 5, wherein the current generation module further comprises:
an adder coupled to the output module for generating a sensing current according to the sensing result and the slope compensation current; and
a transformation resistor coupled to the adder and a pulse width modulation comparator for transforming the sensing current into the sensing voltage;
wherein the sensing result is the sensing current difference and the down-bridge conduction current.
8. The current sensing apparatus of claim 5, wherein the current generation module further comprises:
a transformation resistor coupled to the output module and the slope compensation circuit for generating the sensing voltage according to the up-bridge conduction current and the slope compensation current;
wherein the sensing result is the up-bridge conduction current.
9. A voltage converter apparatus comprising:
an input terminal for receiving an input voltage;
an output terminal for outputting an output voltage;
a clock generator for generating a clock signal;
a controller coupled to the clock generator for receiving the clock signal to generate an duty cycle signal;
an inverter coupled to the controller for receiving the duty cycle signal to generate a reverse phase duty cycle signal;
a gate driver coupled to the inverter for receiving the reverse phase duty cycle signal to generate a gate control signal;
a driver circuit comprising an up-bridge circuit and a down-bridge circuit for receiving the gate control signal to control conduction conditions of the up-bridge circuit and the down-bridge circuit;
an inductor comprising one end coupled to the driver circuit and another end coupled to the output terminal;
a feedback module coupled to the output terminal for generating a feedback signal according to the output voltage;
an error amplifier coupled to the feedback module for generating an amplification signal according to the feedback signal and a reference voltage;
a loop compensation network coupled to the error amplifier for generating a compensation result according to the amplification signal;
a slope compensation circuit for generating a slope compensation current;
a current sensing module comprising:
a circuit selection module coupled to the clock generator and the controller for generating a circuit selection result according to the clock signal and the duty cycle signal;
a current sensing module coupled to the circuit selection module, the up-bridge circuit and the down-bridge circuit for measuring an up-bridge conduction current of the up-bridge circuit or a down-bridge conduction current of the down-bridge circuit according to the circuit selection result; and
a current generation module coupled to the current sensing module and the slope compensation circuit for generating a sensing voltage according to the slope compensation current and the up-bridge conduction current or the down-bridge conduction current; and

a pulse width modulation comparator coupled to the current generation module and the loop compensation network for generating a pulse width modulation signal to the controller according to the sensing voltage and the compensation result.
10. The voltage converter apparatus of claim 9, wherein the circuit selection module further comprises a comparator for generating the circuit selection result according to a difference between the clock signal and the duty cycle signal.
11. The voltage converter apparatus of claim 10, wherein a conduction period of the up-bridge circuit is smaller than a conduction period of the down-bridge circuit when the circuit selection module generates the circuit selection result.
12. The voltage converter apparatus of claim 9, wherein the current sensing module further comprises an up-bridge sensing module and a down-bridge sensing module for measuring the up-bridge conduction current and the down-bridge conduction current according to the circuit selection result, so as to generate a conduction current difference.
13. The voltage converter apparatus of claim 12, wherein the current sensing module further comprises:
a clock transformation module comprising:
a switch module coupled to the clock generator for determining a conduction condition of the switch module according to the clock signal, so as to output a current clock signal; and
a filter coupled to the switch module for generating a analogy duty cycle signal according to the current clock signal;